2 4x 7 1 July 8, 2019 16 32 64 128 2 4x 7 )+ 13 91 2 4x 7 )= 13x 5x 14 2 4x 7 )= 10 2 4x 7 13 2 4x 7 11 2x 2 4x 7 12 4x 2 7 12x 4x 2 7 11 4x 2 16x 7 4x 2 11x 7 4x 2 12x 7 0 2 4x 3 7 1 4x 2 11x 7 0 4x 2 10x 7 0 2 4x 7 2x 1
