4 2 x 4 July 8, 2019 16 32 64 128 4 2 x 4 2 4x 2 x 4 4 2 x 4 3 4 2 x 4 5 4 2 x 4 10 4x 2 x 4 0 4 2 x 4 6 4x 2 x 4 factorise 4 2 x 4 1 4 2 x 4 8 4 2 x 4 7 40 2 x 4 4 2 x 4 9 4 2 x 4 0 4x 2 x 4 factor