25 x 3 * 5 x 2 0 July 8, 2019 16 32 64 128 X 25 5 x 2 3 0 1 25 x 3 2 12 * 5 x 2 7 0 25 x 2 3 x 5 x 2x 7 0 3 5 x 2 25 x 10 5 0 1 9 x 3 2 1 25 x 5 2 0 3×25^x+0 5