The GCF is 6.
The GCF is 9.
If you mean 18, 27 and 63 then the GCF is 9
The number 9 would be the GCF, or greatest common factor, of 18 and 63.
The GCF is: 63
The GCF is 9.
The GCF is 9.
The GCF is 9.
The GCF is 6.
The GCF is 9.
The gcf of 27, 45, 63 and 90 is 18 Hope It Helps:)
The GCF is 9.
If you mean 18, 27 and 63 then the GCF is 9
9.
If you mean 18, 27 and 63 then the GCF is 9
The GCF is 9.
The GCF is 9.