The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF of 12, 28, and 30 is 2
The GCF is 1.
The GCF would be 4.
The Greatest Common Divisor of 15, 78 is 3.
The greatest common factor (GCF) of 20 and 30 is 10.
The greatest common factor of 30 and 39 is 3.
30 is a factor of 150 so 30 is the greatest common factor of 30 and 150
21 and 28
21 and 28.
The greatest common factor of 7 and 30 is 1.