5x x 1 6 x 30 July 8, 2019 16 32 64 128 5x 3 x 1 )= 6 x 30 5x 1 3 x 1 )= 6 x 1 30 solution 5 x 5 x 5 5 x 5 x 5 x 5 x 5 5 x 7 = 35