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.
They are coprime or relatively prime, having a GCF of 1.
It can be. 21 is relatively prime with 32.
No, 100 and 202 are not relatively prime. Relatively prime numbers only have the number 1 as a common factor. The number 1 is a common factor for them, but the number 2 is another common factor that they have, so they are not relatively prime.
209 is relatively prime (as is 211).
No, they are not relatively prime.
25 is relatively prime with 36. 25 is not relatively prime with 35.
No, 30 and 36 are not relatively prime. They share the factors 3 and 6.
No. Even numbers can't be relatively prime.
80 and 189 are relatively prime as they have no common factors other than 1.
Relatively prime, yes.
No.
No.
No.
no
No, they are not.
No, they are not.