1 2 x 4 7 10 July 8, 2019 16 32 64 128 2 1 10 x 4 7 1 4 5 x 2 7 10 4 1 6 x 2 7 10 2 4 7 x 10 1 9 10 1 2 x 7 3 4 1 4 5 x 2 2 7 x 10 9 1 - 2 = 4
