2 5 x 5 13 July 8, 2019 16 32 64 128 2 5 x 130 5 x - 2 4 = 13 2 5 x 13 7 6 x 5 )- 2 2x 5 )= 13 2 5 x 135 2 5 x 13 40 2 5 x 1300 2 x 2 5
