It is: 28 which is the greatest common factor of 56 and 84
4x^3y
The GCF is 20.
The GCF is 16.
The GCF is 2.
The GCF is 15.
The GCF is 1.
The GCF is 12.
The GCF is 4.
The GCF is 6.
The greatest common factor of 4884 , 144 = 12
The greatest common factor of 132 and 144 is 12.