2 x 5 2 72 July 8, 2019 16 32 64 128 X 5 2 72 0 2 x 5 2 x 4 72 7 5 x 2 2 72 18 1 2 x 5 1 2 x 72 2 ax 3 2 x 5 720 2^a x 3^2 x 5 = 720 work out the value of a 2 x 2 5
