The factors of 63 are: 1, 3, 7, 9, 21, 63
The factors of 1088 are: 1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 272, 544, 1088
The common factors are: 1
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.
The GCF is 3.
The GCF is 1.
The GCF is 1.