What method will you use to find the gcf of 48 64 144?

Answer 1

-- I will list all the factors of 48.

-- Then I will list all the factors of 64.

-- Then I will list all the factors of 144.

-- I'll make a new list, of the numbers that appear on all three lists of factors.

-- Then find the biggest number on this last list.

-- If it's not 16, I'll know I made a mistake, and I will go back to step-1.

Answer 2

2 x 2 x 2 x 2 x 3 = 48

2 x 2 x 2 x 2 x 2 x 2 = 64

2 x 2 x 2 x 2 x 3 x 3 = 144

2 x 2 x 2 x 2 = 16, the GCF