the only whole number gcf is "1".
The GCF is 1.
The GCF of 9 and 20 is 1
The GCF is 1
The GCF is 4.
The GCF is 1.
The GCF is 1.
The GCF is 20.
The GCF is 9.
The greatest common factor of 20 and 90 is 10.10 x 2 = 2010 x 9 = 90
gcf of 80 and 100 is 20.The GCF is 20.
The GCF is 9.
The GCF is 9.