The GCF is 45.
The GCF is 60.
The GCF is 180.
The GCF is 20.
The GCF is 9.
The GCF is 4.
The GCF is 20.
The GCF is 45.
The GCF is 12.
The greatest common factor of the numbers 180 and 150 is 30.
The GCF of 180, 192 is 12.
The GCF of 180 and 231 is 3.