Question

How many primes less than 1000 are divisible by 7?
none
1
more than 1 but less than 142
142
more than 142

Answer 1

What is a prime number?

Answer 2

I think it is none, because 7 is prime?

Answer 3

You are correct, but it's not because of 7

Answer 4

Prime numbers are only divisible by 1 and itself, so if 7 was a factor, then this number wouldn't be prime (assuming this number isn't 7)

Answer 5

ok thanks!

Answer 6

well I'm not thinking about 7 itself...so it's 1

Answer 7

because 7 is indeed prime

Answer 8

the answer is 1??

Answer 9

I thought it was none

Answer 10

yes because 7 is divisible by itself and it's prime

Answer 11

I didn't think about that til just now

Answer 12

are u sure?...

Answer 13

yes

Answer 14

there's only one prime that's divisible by 7, and that's 7 itself