4 6 7 x 1 3 4 July 8, 2019 16 32 64 128 4 7 x 6 1 4 7 x 3 9 6 7 8 x 4 1 4 x 3 1 8 X 3 4 2x 7 6 4 1 4 4 7 x 3 6 x 2 5 x 1 4 7 6 x 1 3 3 4x 7 7x 4 4 + 4 = 6 4 x 6/7