It can be. 21 is relatively prime with 32.
No, they are not relatively prime.
Yes, because the only common factor they have is the number 1.
Yes, they are relatively prime.
Yes, they are relatively prime.
Yes, they are relatively prime.
Yes, they are relatively prime.
Yes, they are relatively prime.
Yes, they are relatively prime.
Yes, they are relatively prime.
No, 14 and 21 are not relatively prime. They share the factor 7.No.
Yes, 4 and 21 are relatively prime. Numbers that are relatively prime only have the number 1 as a common factor. That is the case with 4 and 21.