the gcf of 20 and 84.
The GCF of 20 and 84 is 4... Such a low greatest right?
The gcf of 20 and 84 is 4.Factors of 20:1, 2, 4, 5, 10, 20Factors of 84:1, 2, 3, 4, 6, 7, 12, 21, 28, 42, 84GCF of 20 and 84 is 4.