2x 5 x 7 18 July 8, 2019 16 32 64 128 2x 5 x 7 180 X 5 3x 7 2x 18 2x 2x 5 18 x x 7 12 2x 7 )( x 3 2 2x 5 )= 18 2x 7 2 x 2 5