Homework Help: MATH

Posted by David on Friday, April 2, 2010 at 12:47pm.

Let’s agree to say that a positive integer is prime-like if it is not divisible by 2, 3, or 5. How
many prime-like positive integers are there less than 100? less than 1000? A positive integer is very prime-like if it is not divisible by any prime less than 15. How many very primelike positive integers are there less than 90000? Without giving an exact answer, can you
say approximately how many very prime-like positive integers are less than 1010? less than
10100? Explain your reasoning as carefully as you can.

No one has answered this question yet.

Answer this Question

Related Questions

math - Let’s agree to say that a positive integer is prime-like if it is ...
math - According to the Journal of Irreproducible Results, any obtuse angle is a...
Math - The question is this: You know that a number is divisible by 6 if it is ...
IB HL Math - I need to that if there is better way to prove the following: I am ...
Plz help me..just one MATH question - The number 1 is both the square of an ...
MATH - Find the only positive integer whose cube is the sum of the cubes of ...
math - if (x^65535)-1 is divisible by the prime number 65537, x is an integer, ...
math algebra 1 - What is the least positive integer that is divisible by all ...
math - dtermine the smallest positive integer that is divisible by each of the ...
math - can you answer this question in a different and more logical way than ...

For Further Reading

First Name:
School Subject:
Answer: