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Number Theory
Page 2
Questions (6,223)
What is the greatest number, which has the billions period as it's last period? write this number in words too.
1 answer
asked by
David
41 views
A Professor in havard University, Sent His Phone Number In A Disorderly Manner To His Brilliant Students. The Disordered Phone
7 answers
asked by
clement
4,247 views
A positive whole number is called stable, if at least one of its digits has the same value as its position in the number.
10 answers
asked by
Denny
3,676 views
What is the probability that a randomly selected three-digit number has the property that one digit is equal to the product of
15 answers
asked by
Anonymous
5,683 views
How many integers $m$ are there such that $0<m<100$ and $\gcd(m,100)$ is a single-digit number?
13 answers
asked by
Joy F
3,404 views
No need to show your work, just tell me the answer, it is due tomorrow.
How many integers $n$ satisfy the condition $100 < n <
7 answers
asked by
Logan
2,822 views
If the digits of the number are reversed, the number is increased by 36. The sum of the digits in the number is two and
5 answers
asked by
Marie
4,480 views
Hi. I found this question on a Math Counts practice test and it seriously confused me. I've never learned about this, and it
4 answers
asked by
Sahana
1,648 views
three consecutive primes are summed. when the sum is squared, the result is 72,361. what is the largest of the three primes?
4 answers
asked by
shaun
2,560 views
Write all possible 3-digit numbers sum of whose digits is 12
5 answers
asked by
Misthi
1,834 views
What is the smallest seven-digit number divisible by 11 that can be formed by the digits 9, 8, 7, 4, 3, 1, and 0 each used
4 answers
asked by
sub to AntsPiano on yt
880 views
The sum of the digits in a three digit number is nine.The tens digit is half the sum of the other two and the hundreds digit is
7 answers
asked by
Shadrack
1,632 views
Aubrey has a shelf full of books.
• Exactly 1} 3 of the books on the shelf are mysteries. • Aubrey has read 10 of the
6 answers
asked by
Lakshmi
1,836 views
How many 2-digit numbers are multiples of 2 but not 4?
7 answers
asked by
Helen
2,310 views
Which underlined digit is ten times the value of the digit to its right?Responses A. 734,422,510 B. 734,422,510 C. 734,422,510
4 answers
asked by
Cecilia
842 views
Find the least common multiple of 2 and 12.(1 point)
Responses 2 2 36 36 24 24 12
1 answer
asked by
Hello
41 views
Is 14/3 a rational number? I think so... but I'm confused because if you divide 14 by 3 then the decimal part is
7 answers
asked by
LILY
2,901 views
A factory makes automobile parts. Each part has a code consisting of a letter and three digits, such as C117, O076, or Z920.
5 answers
asked by
Francesca
3,035 views
From set of 20 natural no.s 2 are selected.
find probability that their sum is 1.odd 2.even 3.selected pair is twin prime
5 answers
asked by
Edward
1,501 views
If the lcm of first 20 natural no.
is x then find the lcm of first 25 natural no.
5 answers
asked by
Simmi
12,098 views
How many even natural-number factors does $n = 2^2 \cdot 3^1 \cdot 7^2$ have?
10 answers
asked by
Logan
3,546 views
A number is chosen at random from the integers 10 to 30 inclusive .find the probability that the number is a) a multiple of 3 b)
5 answers
asked by
Anonymous
2,231 views
how many two-digit primes have a ones digit of 1????????????????????
got no clue
7 answers
asked by
amad
4,170 views
Andrew arranged the number 1, 2, 3, ...11, 12 into six pairs so that the sum ofany two numbers in a pair is prime and no two of
5 answers
asked by
Jane
2,211 views
John chooses a 5-digit positive integer and deletes one of its digits to make a 4-digit number. The sum of this 4-digit number
10 answers
asked by
Amitabha
4,343 views
I am a 6-digit number. All my digits are the same. The sum of all my digits after being subtracted from the largest 6 digit
6 answers
asked by
narendra
4,439 views
Solve the mathematical puzzle.
Determine the digits of Z from these clues. The fourth digit of Z is the largest prime factor of
4 answers
asked by
beyonce
1,526 views
show that the sum of four consecutive whole numbers is divisible by 2
6 answers
asked by
kendra
1,978 views
explain why 36 is a multiple of 4 but 26 is not
5 answers
asked by
emy
773 views
The difference between the two digits of a two digit number is 2. If the digits swap places,the number is 18 less than the
5 answers
asked by
Lara
1,680 views
A three digit number is such that twice the hundreds digit is more the teens digit by two.The unit digit is thrice the hundreds
4 answers
asked by
Peter
1,513 views
For how many values of n where n is a positive integer less than 10 is n+1/2 an integer?
A) None B) One C) Three D) Four E) Five
5 answers
asked by
Ellie
875 views
If a and b are two positive co-prime integers such that a = 12b then
HCF (a, 12) =
4 answers
asked by
Kaur
1,030 views
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
4 answers
asked by
Mike
905 views
Prove that 140 * 141 * 142 * ... * 159 * 160 is divisible by 4321.
5 answers
asked by
Anonymous
2,574 views
What is the sum of the unique prime factors of 9991?
12 answers
asked by
GJ
2,514 views
If p and q are relatively prime, then GCF(p,q) = ______, and LCM(p,q) = _______.
4 answers
asked by
Isa
1,957 views
I am a 2-digit number. The sum of my digits is 15. My tens digit is odd. My ones digit is odd. My ones digit is even. What
5 answers
asked by
mckenna
2,312 views
What is the smallest positive integer by which 180 should be multiplied to obtain a perfect square? Thank you
4 answers
asked by
PLEASE HELP
640 views
What is the HCF / GCF of 120, 180 and 190
in prime factorisation method
4 answers
asked by
Manasvi
1,194 views
What is the third number in the 156th row of Pascal's triangle?
I know that it is 154 x ___ how do I find out the number? thanks
5 answers
asked by
sh
637 views
Find an odd natural number x such that LCM (x, 40) = 1400.
9 answers
asked by
yenealem
6,224 views
Develop An Algorithm And Draw the Flowcharts To Find the Sum of Odd Numbers Between 100 And 200
5 answers
asked by
Anonymous
8,700 views
Find how many positive integers with exactly four decimal digits, that is, positive integers between 1000 and 9999 inclusive,
4 answers
asked by
carlton
4,987 views
Identify which condition is necessary for a number to be rational.(1 point)
Responses It must be written as a fraction. It must
30 answers
asked anonymously
1,712 views
lcm of two numbers
pi/3 pi/2 How do I do it? Would it be pi or pi/6? Thanks
7 answers
asked by
bob
5,564 views
the boys of a school can be arranged in 12, 15, 18 equal rows and also into a solid square. what is the least number of boys
10 answers
asked by
tanzil
9,787 views
Given a four digit number XXXX, are there more permutations if repetition is allowed or not allowed?
5 answers
asked by
Anonymous
2,323 views
find the least whole number by which 2^5x5^4x7^3 must be multiplied with to get a perfect cube. what is the cube root of the
5 answers
asked by
me
1,417 views
how many prime positive integers are divisors of 555?
6 answers
asked by
shaun
2,878 views
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