because it can only be divided by one and itself nothing else
5 and 7
It i: 2*3*7 = 42
Prime, only itself and 1 can go into it.
No. 133+7 =140 which is divisible by 7, so 133 is also divisible by 7. (It is 7 * 19.)
No, it is composite. 21 is divisible by 1, 3, 7, and 21. =)
No.
a prim number is a number that only one and its self can go it to it ....... And a composite number is when other numbers can go in to it
no. it is not a prime number
no it is not a prime number
2 and 7
No 70 is not a prime number.
No 17