# there are two prime numbers between 100 and 199 such that the ten digits is a prime number, the ones digit is a prime number and the tens and ones digits taken together are a 2 digit prime number. find

34,638 results
1. ## PROBLEM SOLVING IN MATHEMATICS

there are two prime numbers between 100 and 199 such that the ten digits is a prime number, the ones digit is a prime number and the tens and ones digits taken together are a 2 digit prime number. find the sum of these 2 prime number.

asked by alya on October 6, 2011
2. ## maths

my number is less than 100 one more than a multiple of 3 one of its digits is prime if you reverse its digits you get a prime it has exactly four factors the sum of digits is prime if you miltiply it by 5 it is greater than 100

asked by ashley on February 19, 2014
3. ## math

For the numbers from 100 through 199, how many have different digits in increasing order?

asked by Jody on May 4, 2011
4. ## math

The number 199,557 contains two sets of digits in which one digit is ten times as great as the other. What are the values of the digits in each set?

asked by liz on October 15, 2014
5. ## math

While adding ten two-digit numbers the digits of one of the numbers were interchanged. As a result the sum of all the ten numbers increased by a value which was four less than that number. Three times the sum of the digits of the original number is ten

asked by Suzanne on November 13, 2014
6. ## math

While adding ten two-digit numbers the digits of one of the numbers were interchanged. As a result the sum of all the ten numbers increased by a value which was four less than that number. Three times the sum of the digits of the original number is ten

asked by vipul gediya on May 26, 2018
7. ## Math

Using only the digits 2,3,5 and 7 complete the following problems below. 1.Name two things that the numbers 2,3,5,7 have in common 1.All prime numbers 2.What is the smallest possible number that can be written using each of these digits only once? 2357?

asked by Jerald on August 28, 2013
8. ## math

The digits 2, 4, 6, 8 and 0 are used to make five-digit numbers with no digits repeated. What is the probability that a number chosen at random from these numbers has the property that the digits in the thousands place and ten's place are each larger than

asked by Alex on December 11, 2018
9. ## Number Sentence

In a 4-digit number, the two greatest place-value digits are 2. The sum of the ones and tens digits is 14. What numbers are possible? We're told we have a number that looks like 22ab where a and b are the ten's and one's digits, and a+b=14. There aren't

asked by Joseph on September 18, 2006
10. ## Math

Rob used all the digits except 0 to write a 9-digit counting number such that no two consecutive digits form a 2-digit prime number. (That is, for the number abc,def,ghi, where letters stand for unique digits, none of the following 2-digit numbers are

asked by PT on January 16, 2019
11. ## MAths

Consider a digital clock. The first time after midnight when the three digits are all prime numbers is 2:22 am. What is the last time before 10:00 am, when the three digits on the clock are all prime numbers? Details and assumptions If you determine that

asked by Ian on April 15, 2013
12. ## math

Can someone help me with prime and composite numbers? Prime numbers are counting numbers that can be divided evenly bt only two numbers:1 and themselves. A prime number can also be described as a counting number with exactly two factors, 1 and itself. So,

asked by haylo on October 24, 2006
13. ## Math

What are 2 prime numbers between 100-199 such that the tens digit is a prime number, the ones digit is a prime number, and the tens and ones digit taken together are 2 digit prime number.

asked by Anonymous on April 23, 2013
14. ## math

Find all the two digit prime numbers neither of whose digits are prime. Someone helped me yesterday but I do not understand.

asked by Diana on March 15, 2011
15. ## math

2. Find two consecutive prime numbers less than 40 such that the sum of their opposites -5. 3. Insert plus (+) or minus (-) on the digits 1 to 9 asshown to obtain 100. 1 2 3 4 5 6 7 8 9. How many can you form?

asked by tsunayoshi on June 30, 2014
16. ## Calculus

What is the largest two digit prime number whose digits are both prime numbers?

asked by Ashley on January 26, 2008
17. ## Math

Find all the two digit prime numbers neither of whose digits are prime.

asked by Diana on March 14, 2011
18. ## math

The Florida Lottery is made up of the numbers 1-49. My mother has observed that the winning numbers many times are prime numbers. 1.List the prime numbers from 1-49: 2.What is the probability of a prime number being picked randomly from the numbers 1-49?

asked by Anonymous on January 17, 2010
19. ## math

The Florida Lottery is made up of the numbers 1-49. My mother has observed that the winning numbers many times are prime numbers. 1.List the prime numbers from 1-49: 2.What is the probability of a prime number being picked randomly from the numbers 1-49?

asked by Anonymous on January 17, 2010
20. ## math

i posted this one a ways down, i apologize for double posting, but thought this might be a better way to ask. question:if you write the numbers from 1-999 on a piece of paper, (1234567891011121314151617181920...998999) what will the 2006th digit from the

asked by courtney on October 16, 2008
21. ## high school

Use the digits in the year 2010 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial) — along with parentheses, brackets, or other grouping symbols — to write expressions for the counting numbers 1 through 100.

asked by Sama on December 18, 2009
22. ## Algebra - Middle School

Use the digits in the year 2010 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial) — along with parentheses, brackets, or other grouping symbols — to write expressions for the counting numbers 1 through 100. All

asked by Sama on December 18, 2009
23. ## Math

I am number greater than 70 000 but less than 90 000.My ones digit is the only even prime number.My tens digit id the same as my ones digit.My ten thousands digit is four times my ones digits.Both my hundreds and thousands digits are half the ten thousands

asked by Anne on June 6, 2012
24. ## MATH

TWO INTEGERS ARE DEFINED AS "PARTNERS" IF BOTH OF THEIR PRIME FACTORIZATIONS CONTAIN ALL THE SAME PRIME FACTORS. FOR EXAMPLE, 15 AND 45 ARE PARTNERS SINCE BOTH ARE DIVISIBLE BY THE SAME SET OF PRIME NUMBERS 3 AND 5. HOW MANY POSITIVE INTEGERS GREATER THAN

asked by DEANDRA on September 11, 2012

The number has 7 digits It is evenly divisible by 100 The value of one of the digits is 60,000 The digit in the hundreds place is both even and prime The digit in the thousandr place is half the value of the digit in the ten thousands place The digit in

asked by brandon on August 16, 2010
26. ## math

the florida lottery is made up of the number 1-49. my mother observed that the winning numbers many times are prim numbers. a. list the prime numbers from 1-49 b. what is the probability of a prime number being picked randomly from the numbers 1-49? c. is

asked by ssmomo on February 1, 2010
27. ## Math

* How many different odd 3-digit numbers can be formed using the digits 1,2,3,4,5 if none the numbes have repeating digits? * A bus having a seating capacity of 45 people is 80% occupied. When the bus stops one -third of the people get off and 3 people get

asked by Marie on January 17, 2013

how do i write java loop program where the user enters 10 random numbers. the program then collects the prime numbers from that 10 random numbers and adds all the prime numbers and prints the sum of the prime numbers. if the number 13 is entered, the loop

asked by ghost on February 17, 2019
29. ## Algebra

What are the first 100 digits of Pi? How would I make a graph of the frequency of each digit? How would I find the mean of the first 100 digits? Then how would I creat a circle graph of the information in the bar graph? Help please.

asked by M on March 13, 2007
30. ## Math

Which of the following is a prime #? a.2 b.19 c.37 d.51 e.67 I choose 2. But the book answer is 51. The book says:( 2,19,37, and 67 are prime #'s) 3x17=51, so it is not prime. I forgot what prime #'s mean that's why I choose anything like 2. help me. A

asked by Mack on August 9, 2007
31. ## maths

Find mean of first ten prime numbers.

asked by Tarandeep on February 18, 2017

What is the sum of all integer values of n satisfying 1≤n≤100, such that (n^2)−1 is a product of exactly two distinct prime numbers? Details and assumptions The number 12=2×2×3 is the product of 3 (not necessarily distinct) prime numbers.

asked by Oian on March 29, 2013
33. ## Math

What is the sum of all prime numbers less than 500 with only 3s and 4s as digits

asked by Mags on January 10, 2017
34. ## Algebra

For how many two-digit prime numbers is the sum of its digits 8?

asked by Jack on April 14, 2011
35. ## math

(1)I am thinking of a 5-digit odd number. (2)The sum of all its digits is 20. (3) The digits in the hundreds place and in the tens place are consecutive numbers. When you multiply the digits in the tens and hundreds places, you get the digits for the

asked by Johnny on September 23, 2011
36. ## math

Get the number right. *None of the digits repeat. *It is between 20,000 and 77,777 *The digit in the thousands place is 3 times the digit in the ten thousands place *The ones digit is a prime number *The hundred digit is half the sum of the ones,

asked by Tori on September 26, 2012
37. ## Math

1: Goldbach's Conjecture is a famous conjecture that has never been proven true or false. The conjecture states that every even number, except 2, can be written as the sum of two prime numbers. For example, 16 can be written as 5+11. 1 a: Write the first

asked by Jordan on October 9, 2017

In the multiplication problem A S __x__A____ M A N each letter represents a different one of the ten digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Which one of the ten digits does A represent?

asked by Trice on January 22, 2011
39. ## Math

1) The numbers 2 and 3 are prime numbers. They are also consecutive numbers. Are there other pairs of primes that are consecutive numbers? Why or why not? 2) which group of numbers, evens or odds, includes more prime numbers? Why?

asked by Joe on October 4, 2017
40. ## Math (algebra)

What are the last three digits of the largest perfect square that can be expressed as p^2+pq+q^2, where p and q are (positive) prime numbers?

asked by Danny on July 16, 2013
41. ## math

Circle the prime numbers in the following set of numbers. Show your work. 953, 1,427, 2,971 I can tell whether each number is prime but I am having a hard time with individual numbers

asked by Matthew on April 29, 2017
42. ## Math

How many distinct numbers greater and equal to 100 and smaller than 3000 can be formed using digits 0,1,2,3,4, without repetition of digits?

asked by Anna on February 12, 2013
43. ## Math

How can you order three whole numbers with different numbers of digits without comparing the digits? Give an example. I think that I can use the same number with different place numbers like: 4, 44, 444; I don't have to compare numbers. Is this right? If

asked by Nehemiah on August 24, 2008
44. ## math

A) How many of the three digit numbers can be made from all of the digits, 1,3 and 7, and used only one each,are prime? B) What about 2,3 and 4? Once I get to know what the answer to the first one is, I'll figure out the second one myself.And then if I

asked by Kajol on November 19, 2016
45. ## math

. The ones digit is 0. . The hundreds and tens digits are consecutive numbers. . The digits in the thousands period have a sum of 15, with the hundred thousands digit being the greatest of the threes digits and the ten thousands digit being the least. .

asked by sofia on December 10, 2012
46. ## math

which of these statements about prime and composite numbers is true? F)all prime numbers are odd. G)all prime numbers have three factors. H)all composite numbers are divisible by two. J)all composite numbers have more then two factors i thinks it (J) but

asked by george on March 25, 2010

when I am rounded to the nearest ten I am 50. The difference between my digits is one. I can be two different numbers. Who am I

asked by Laurin on November 9, 2010
48. ## math

When I am rounded to the nearest ten I am 40 the sum of my digits is 8 what two numbers can I be

asked by Anonymous on April 1, 2014
49. ## math

You have 2 digits, 2 numbers, reverse digits and 54 if the difference and the sum of all is 10 I'm not clear what you're asking, could you clarify what the conditions are for us please? My grandson came home with the problem that he wrote out on a piece of

asked by Will on August 31, 2006
50. ## Math

A book called The Penguin Dictionary of Curious and Interesting Numbers by David Wells (1986) contains fascinating numbers and their properties. One of which is the only 3-digit numbers that are prime and all rearrangements of their digit are also prime

asked by Kris on November 30, 2008
51. ## algebra

The product of the first ten prime numbers must be divisible by: F. 16 G. 18 H. 20 J. 22 K. 24 Please provide detailed explanation with answer (if possible) Thanks in advance.

asked by ER on February 17, 2015
52. ## Math

the only perfect number of the form x(n) + y(n) A perfect number is an integer that is equal to the sum of its positive divisors (not including itself). Therefore, 6 is a perfect number, since its positive divisors are 1, 2, and 3 and 1+2+3 = 6. 28, 496,

asked by Mike on November 19, 2006
53. ## math

What methods can you use to find prime numbers? How are prime numbers used in mathematics? How can you use prime factorization to find the GCF and LCM? Provide an example

asked by chandice on June 18, 2009
54. ## math

I have ten,ones and tenths.My digits are next door numbers and they add up to 9. What number am I?

asked by Anonymous on November 13, 2018
55. ## math

I have ten,ones and tenths.My digits are next door numbers and they add up to 9. What number am I?

asked by Owen on November 30, 2016
56. ## math

Find the difference between the sum of even numbers between 100 and 110 and the product of prime numbers between 20 and 30. #anyone to help me out

asked by kelvin on May 18, 2017
57. ## Math

A positive integer n is defined as a "prime interlude" if n-1 and n+1 are both prime numbers. Which of the following is not a "prime interlude?" a.4 b.18 c.30 d.72 e.90 ( First of all; What is a "prime interlude??") I don't understand the question and

asked by Mack on August 9, 2007
58. ## math

write all the possible odd 5-digit numbers using the digits 1,4,7,8 and 0, with the 1 in the ten thousands places.

asked by lindsey on August 24, 2016
59. ## ALGEBRA 2...

1. Simplify 2.3^5 log base 2.3^1 2. How do you solve this matrix using a graphing calculator AX=B A=9 -3 1 B=-7 X= x 1 1 1 -3 y 16 4 1 21 z 3. How many 4-digits numbers have the thousands digit equal to 2 and the units digit equal to 7? 4. If p and q are

asked by Anonymous on March 25, 2013
60. ## math

number is greater than 50 and less than 100. you can make exactly 5 different rectangles with a mystery numbers of tiles. its prime factorization consists of only one prime number. whats my number

asked by Anonymous on January 24, 2011
61. ## Math

If the digits 1 through 9 are written in order, it is possible to place plus and minus signs between the numbers or to use no operation symbol at all to obtain a total of 100. For example,1 + 2 + 3 + -4 + 5 + 6 + 78 + 9 = 100 Can you obtain a total of 100

asked by Jeff on January 11, 2010
62. ## math

Neelesh is fond of playing number games. Once when his friends were present he challenged them. He said that he has thought of a five-digit number and anyone who guesses it correctly can use his cycle for a full day. ‘To help you,’ he said, ‘I shall

asked by gayathri on August 13, 2016
63. ## Math

Suppose you have two numbers. The difference of the two numbers is 12. The product of the two numbers is 17. Multiply the larger of the two numbers by 100, add 50 times the smaller number to that, round the total to the nearest whole number. That starts

asked by Lesa on March 24, 2007
64. ## Math

In the town of Niceville, a local lottery is held once a year for the residents. Lottery tickets cost 50 cents apiece. Each lottery ticket contains four numbers, from 1 to 20. The lottery machine will select six numbers from 1 to 20. A winning ticket,

asked by Samantha on December 29, 2012
65. ## Math

How many digits are in the smallest positive number divisible by th first ten numbers in the Fibonacci sequence?

asked by Eli on May 27, 2011
66. ## Math

In the numbers 465,531, which places contain digits where one digit is ten times as great as the other?

asked by Jayden on September 28, 2015
67. ## Math

What do the digits in the number 15 add up to? Answer 1+5=___. Using single digits, how many different ways can you add up to 6?. Example: The least number of digits is 2, and it is 1+5=6. The greatest number of digits is 6, and it is 1+1+1+1+1+1=6. 1.How

asked by Mohammed on March 21, 2010
68. ## Math

1.) A security code has seven characters. Each code begins with two digits, then two letters, and finally three digits. the number of distinct security codes possible if repetition is allowed? 2.) How many ten digit phone numbers are possible if a number

asked by Emily on July 16, 2012
69. ## math

write a five digit number(s) that fits each description. use only the digits that the athletes are wearing. use each digit only once in each answer. The digits on athletes are: 4,1,8,3,6 find all of the numbers with a 4 in the ones place and 8 in the ten

asked by John Dosley on December 11, 2013
70. ## College

Three(3) digit numbers can be formed from the digits 0,1,3,5,7 and 8. How many numbers can be formed without repeats. (A) if the 3 digits numbers must be divisible by 5. (b) if the 3 digits number must be a multiple of 2

asked by Ibrahim issahaku kpaniyili on July 17, 2015
71. ## math,correction, bobpursly

Since when is 5^7 =8125? if a number is a multple of ten, that means the last digit is zero. The leading digit cannot be zero. 9*10^5*1 on c, again, the leading digit cannot be zero. d is right e. no leading zero is allowed. 9*9*8*7*6*5*4= ? can someone

asked by bobpursley on July 6, 2007
72. ## math

The difference between two prime numbers is 1985. The larger of these two prime numbers is A. 2431 B. 2002 C. 1987 D. 1986

asked by Kitty on August 8, 2014
73. ## Math (Complex Numbers)

Let N be the sum of all prime powers that can be written as 4^n+n^4 for some positive integer n. What are the last 3 digits of N? Details and assumptions: A prime power is a number of the form pk, where p is a prime and k is a positive integer. Examples:

asked by Mahler on May 9, 2013
74. ## Math

All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion: 1. List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was

asked by Tammy on March 28, 2013
75. ## To Ms. Sue

Ms. Sue Hi! Im not sure if you will be able to help me with this one, since is Math homework, but this time is just to confirm if Im right the question is: What is 1,112,433 rounded to the nearest ten thousand? A. 1,120,000 B. 1,100,000 C. 1,110,000 D.

asked by Shayna on July 31, 2014
76. ## Math

PLEASE HELP I DON'T KNOW WHAT TO DO D': I don't understand what to do or how to even start.... In the town of Niceville, a local lottery is held once a year for the residents. Lottery tickets cost 50 cents apiece. Each lottery ticket contains four numbers,

asked by Help on December 30, 2012
77. ## Math

What is a unit rate? what is the prime factorazation for 945? idk how to do this 10= 15= GCF= i need help with my prime factorization homework what is a prime factorazation i meed held on my homework how do u determine if the numbers are prime or composite

asked by Lindsey on December 12, 2006

Suppose you are comparing two numbers that are greater than 100. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain

asked by Patty on October 4, 2013

i need all the prime numbers of 1-100

asked by albert on November 14, 2008
80. ## Math

The digits 1,2,3,4,5,6,7,8,9 are used to form four two-digit prime numbers, with each digit used exactly once. What is the sum of these four primes

asked by ooooookkkkkk on October 10, 2012
81. ## math

How do the ideas of divisibility and multiples relate to the study of fractions? Show that 1,078 and 3,315 are relatively prime. What is the shortest length of television cable that could be cut into either a whole number of 18-ft pieces or a whole number

asked by anonymous on February 17, 2011
82. ## math

this 7-digit number is 8,920,000 when rounded to the nearest ten thousand. the digits to the tens and hundreds places are the least and same value. the value of the thousands digit is double that of the ten thousands digit. the sum of all its digits is 24.

asked by bam on September 2, 2014
83. ## ALGABRA

WHAT ARE THE 3 LARGEST PRIME NUMBERS LESS THAN 100?

asked by HANNAH on September 14, 2008
84. ## math

the number has 7 digits it is evenly divided by 00 the value of one of the digits is 60,000 the digit in the hundredth place is both even and prime the digit is the thousands place is 1/2 the value of the digit in the ten thousand place the digit in the

asked by sonia on August 29, 2012
85. ## Maths

All prime numbers less than ten are arranged in descending order to form a number.Write down the number formed

asked by Mariam atieno on January 7, 2016
86. ## MATH

THE VALUE 2 TO THE 8TH POWER - 1 IS DIVISIBLE BY THREE PRIME NUMBERS. WHAT IS THE SUM OF THE THREE PRIME NUMBERS?

asked by CASSIE on September 11, 2012
87. ## math

Keno is a casino game in which the player has a card with the numbers 1 through 80 on it. The player selects a set of k numbers from the card, where k can range from one to fifteen. The "caller" announces twenty winning numbers, chosen at random from the

asked by M on October 9, 2011
88. ## Math

Composite digits to prime digits in 638,527 Would this be No

asked by Johnnie on January 16, 2019
89. ## Math

Mr. Digit wanted to assign a number to each student in his class. He could only use the digits 2,3,and 6 and each student's number had to have three digits. Can he find enough numbers for all 25 students if repeated digits are allowed? Will there be any

asked by fko on December 10, 2009

Mr. Digit wanted to assign a number to each student in his class. He could only use the digits 2,3 and 6 and each student's number had to have three digits. Can he find enough numbers for all 25 students if repeated digits are allowed? Will there be any

asked by jessica on January 11, 2010
91. ## math

Matt has a magic number basket. The only numbers that can be placed in the basket are numbers that have two, three, or four digits, all the digits must be odd, and the digits must increase from left to right. How many numbers can Matt place in the basket?

asked by Miep on March 3, 2012
92. ## MATH!

The sum of two prime numbers is the prime number 89,563. Find the smaller of the two addends. I attempted the problem but I'm not sure if it is right. 89,561 is a prime number and so is 2. So is the answer 2?

asked by Lee on May 6, 2011
93. ## java/programming

Please help me, its emergency!!! The 10 numbers will be collected from the keypad using a loop. If the number entered is a prime only, that number will be added. How do I write a Java program to input 10 prime numbers and print the sum?

asked by Anonymous on February 14, 2019
94. ## math

how to use hundreds chart to answer this;(1)what % of the numbers are multiples of 3 (2)what % of the numbers are multiples of both 2 and 3 (3) what% of the numbers are factors of 100 (4)what % of the numbers are prime numbers? i really have no idea how to

asked by wan on November 12, 2012
95. ## Math. Explain

From the digits 1, 2, 3, and 4, how many positive integers are less than 100,000? Consider the possibilities for 5-digit, 4-digit, 3-digit, 2-digit, and 1-digit numbers and repetition of digits. 1,364 1,024 256 A telephone dial has holes numbered from 0 to

asked by Sebastian on March 26, 2012
96. ## math

Ayan created these clues to discribe her numbers.She used each of the 10 digits 0to 9 once to make the two numbers. It is between 52000 and 2000. there is a 2 in the tenth place. the sum of the digits is 23

asked by alban on September 12, 2012
97. ## math

The Twin Prime Conjecture, which has not been proven, argues that there are infinitely many pairs of primes of the form n and n+2. Such a pair is called a prime pair. Some examples of prime pairs are 5 and 7, 17 and 19, and 29 and 31. How many prime pairs

asked by Miep on February 18, 2012
98. ## maths

4x+3y=21 What is your question? You have simply stated the equation of a straight line. what is a prime factorazation?> expressing a number in terms of its Prime factors eg. 126 = 2*3*3*7 all the factors are prime numbers How does this relate to the first

asked by abi on March 23, 2007
99. ## algebra

2. The sum of both digits, of either of two two-digit numbers, in whatever order the digits are written, is 9. The square of either of the digits of either number, minus the product of both digits, plus the square of the other digit is the number 21. The

asked by Anonymous on February 14, 2014
100. ## Math

I have a ? that I am kind of stuck on. It says give an infinite list of natural numbers that are not prime. I know half of the numbers are prime and half are not, but I'm not sure how to answer it. Thanks.

asked by Jon on February 15, 2011