1 5 x 18 July 8, 2019 16 32 64 128 1 5 x 180 1 5 x 1800 1 2 5 x 18 1 3 x 5 18 3x 1 x 5 180 1 5 x 5 18 x 3 4 5 18 x 1 12 8 2 5 x 18 1 3 1 5 x 3 2 2 18 1 5 x 15 18 1 5 6 x 18 1 5 9 x 18 7 1 5 x 18 3 1 5 x 8 )= 18