how many primes between 1 and 1000 is divisible by 13

Question

its related to factors

Answer 1

Do you mean how many numbers, not primes, between 1 and 1000 are divisible by 13 ?

If so, 1000/13=76.923 approximately.

There are 76 numbers divisible by 13 between 1 and 1000.

1*13=13

2*13=26

3*13=39

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74*13=962

75*13=975

76*13=988

77*13=1001 can't use because we exceeded 1000

 

 

Answer 2

how many primes between 1 and 1000 is divisible by 13

 

 

No prime is divisible to any number but unity and itself:

so, the answer is - one, and that would be same number,13.