21 3 4 x 6 July 8, 2019 16 32 64 128 21 6 3 4 х 7 5 21 5 3 x 4 2 3 /= 6 21 8 x 4 3 7 6 21 divided by 3 4 x 6 21 3 x 2 4 x 1 6 2x 3 3 4 x 6 21 4 3 21 x 6 24 4 x 2 3 x 4 2 x 6 21 9 4 21 x 3 6 1 3 21 6x )= 11 4 x 5