25 is relatively prime with 36. 25 is not relatively prime with 35.
Yes, they are relatively prime.
It can be. 16 is relatively prime with 25.
no
Relatively prime, yes.
25 and 98 are not prime numbers
26
No.
No.
Yes, they are. 5 is the only prime factor of 25 and 5 is not a factor of 18, so they have no prime factors in common, which is what relatively prime means.
Yes, e.g. 3 and 5 are relatively prime, 27 (33) and 25 (52) are relatively prime...
25 and 36 are relatively prime because they both share 1 as a factor, but no other factor. As their only common factor is 1, they are relatively prime. Neither is a prime number itself, but it is about the common factors, so in relation to each other, they are relatively prime.
Yes.