Factor them.
2 x 2 x 7 = 28
2 x 3 x 7 = 42
Select the common factors.
2 x 7 = 14, the GCF
The Greatest Common Factor of 28, 42, 63: 7
Greatest common factor of 42 and 28 is 14.
The greatest common factor of the numbers 28 and 42 is 14.
7
The GCF is 7.
Factors of 28... 1,2,4,7,14,28 Factors of 42... 1,2,3,6,7,14,21,42 GCF = 14
The Greatest Common Factor (GCF) of 42 and 28 is 14.
gcf(14, 28, 42) = 14.
The Greatest common factor is 14.
The GCF is 14.
The greatest common factor of 28 and 42 is 7
Two numbers that have the greatest common factor of 14 are 28 and 42.