The GCF of 20, 63 is 1.
The GCF of 20, 30 and 63 is 1.
Factors of 20: 1, 2, 4, 5, 10, 20.Factors of 63: 1, 3, 7, 9, 21, 63.GCF (20, 63) = 1
The GCF of 15, 24, and 72 is 3. There is no GCF for 63, 20, and 50. This makes it relatively prime.
The GCF is: 63
The GCF is 21.
The GCF is 9.
The GCF is 9.
The GCF is 63.
The GCF is 1.
The GCF is 7.
The GCF is 9.
The GCF is 63.