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}
