What is the GCF of 28 and 42 and 56?

Answer 1

GCF of 28 42 and 56 is 14.
The GCF is 14.

(28 = 2 x 14, 42 = 3 x 14, 56 = 4 x 14)

To find the GCF, factor the numbers and multiply their common prime factors:

28 = 2 x 2 x 7

42 = 2 x 3 x 7

56 = 2 x 2 x 2 x 7

Common factors are 2 x 7 = 14

Answer 2

The GCF is 14.

Answer 3

The GCF is 14.

Answer 4

GCF(56, 42, 28) = 14.

Answer 5

14

Answer 6

10

Answer 7

28