0
Wiki User
The GCF is 7.
The GCF of 28 and 63 is 7.
The GCF of 28, 42 and 63 is 7.The GCF is 7.
3276
The GCF of 28, 84, and 91 is 7.
91 - 63 = 28
7
It is: 7
91