If the GFC of two numbers is 1 they are called relatively prime find three sets of relatively prime numbers

2 numbers are called relatively prime if their Greatest Common Factor is 1.

For example, GCF (2, 6) = 2, not 1, so 2 and 6 are not relatively prime.

whereas, GCF (3, 8) = 1, so 3 and 8 are relatively prime.

3 sets of relatively prime numbers are:

{4, 5}, {7, 9}, {9, 16}

Answer:

{4, 5}, {7, 9}, {9, 16}