21 = 3 x 7
39 = 3 x 13
So 21 and 39 are not relatively prime as they are sharing a common factor: 3
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Yes, they are relatively prime.
Yes 34 and 39 are relatively prime.........i think so dont trust this answer!:)
Yes, 16 and 39 are relatively prime. This is because the only greatest common factor they have is 1 that means these two numbers are relatively prime.
39 and 45 are not relatively prime because they have 3 as a common factor. Relatively prime numbers have no common factor greater than 1.
All not prime