The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
You need at least two numbers to find a GCF. The GCF of 18 and 24 is 6.
The GCF is 18.
the gcf is 2 or 11
6, is the greatest common factor of 12 and 18.
The GCF is 1.
The GCF of 18 and 57 is 3.
The GCF is 27.
It is just: 1