3 3 x 216 July 8, 2019 16 32 64 128 3 x 2 3 x 216 4 3 x 3 x 216 X 3 216y 3 3 x 5 3 x 3 216 3 x 1 3 x 5 216 X 3 216y 3 factor 3 x 3 x 3 x 3 x