yes, they are relatively prime.
Yes, they are relatively prime.
No, they are not relatively prime.
Yes.
No, they are not relatively prime.
No, they are not relatively prime.
Yes, they are relatively prime.
Yes, 7 and 20 are relatively prime. The only common factor they have is the number 1, which makes them relatively prime.
No, their common factors are 1 and 11. As 1 is not their only common factor, then they are not relatively prime.
No, they both share 2 as a factor.
No combinations of even numbers can be relatively prime.
No.