63 - 1, 3, 7, 9, 21, 63
6 - 1, 2, 3, 6
the GCF is 3
The GCF is 6.
The GCF is 6.
It is: 6
6
The GCF is 6.
2.
The GCF is 2.
The GCF is 6.
The GCF is 2.
Since 2 is a factor of 6, it is automatically the GCF of this problem.
I think you mean the greatest common factor, the greatest common factor is 3.
3 and 6 4 and 8