The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF is 2.
The GCF is 4.
The GCF is 4.
The GCF of 6, 12, and 20 is 2.
The GCF of 12, 20, and 36 is 4.The GCF is 4.
The GCF is 2.
The GCF of 12 and 20 is 4.
The greatest common factor of 12, 18, 20 and 32 is 2.
The GCF is 2.