12 4 5 6 4 July 8, 2019 16 32 64 128 4 5 x 12 4 6 2 (- 12 x 6 4 4 5 3 4 5 2x 6 12 2 4 1 19 12 3 4 x 4 )= 5 6 4 6x3 4x9 5 6 12
