The factors of 28 are: 1, 2, 4, 7, 14, 28
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
The common factors are: 1, 2, 4
The GCF is 4.
16 = (2)(2)(2)(2)28 = (2)(2)(7)40 = (2)(2)(2)(5)(2)(2) = 4
The GCF is 4.
It is: 4
The GCF is 4.
The GCF is 2.
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF is 2.
4
16 = (2)(2)(2)(2)28 = (2)(2)(7)40 = (2)(2)(2)(5)(2)(2) = 4
4
The GCF is 4.
It is: 4
The GCF is 4.
The GCF is 4.