3 (21+5)
7(7 + 9)
The GCF is 3.
The GCF is 3.
It is: 3
The GCF is 3.
The gcf of 14, 15 and 63 is 1.
7(7 + 9)
The GCF is 3.
The GCF is 3.
The GCF of 15, 24, and 72 is 3. There is no GCF for 63, 20, and 50. This makes it relatively prime.
Factors of 45: 1 3 5 9 15 45Factors of 63: 1 3 7 9 21 63The GCF of 45 and 63 is 9The GCF is 9.