what is the gcf of 25 and 90
25 = 5^290 = 2 . 3 . 3 . 5 GCF is not as greedy as LCM.GCF is just on a diet, so it takes the same number and the smallest amount.25 and 90 both have 5.5^2 or 5 ?Take the smaller one.GCF = 5