0
Anonymous
The GCF is 4.
Wiki User
The GCF of 12, 4, and 28 is 4.
12 = 1,2,3,4,6, 28 = 1,4,7 So the greatest common factor is
GCF(4412, 28) = 4.
4
It is: 4
The GCF of 12, 28, and 30 is 2