Yes, they are relatively prime.
Yes. 25 is 52, 36 is 22 * 32 They have no common factors
835 is not a prime number.
No.
no
15 is relatively prime.
Yes, they are relatively prime.
No
Yes.
one, it is relativly prime. (:
37 is a prime number but 42 is a composite number
No. They have 5 as a common factor.
It can be. 59 is relatively prime to any number that isn't a multiple of 59.