The factors of 38 are: 1, 2, 19, 38
The factors of 63 are: 1, 3, 7, 9, 21, 63
The common factor is: 1
Wiki User
∙ 13y agoThe GCF is: 63
The GCF is 21.
The Greatest Common Factor is 3
The GCF is 9.
The GCF is 9.
The GCF is 63.
The GCF is 9.
The GCF is 7.
The GCF is 1.
The GCF is 3.
The GCF is 63.
The GCF is 1.