5 2 x 7 18 July 8, 2019 16 32 64 128 2 x 7 )- 18x 4 5 11 9 x 7 2 5 18 2x 5 x 7 18 2x 5 x 7 180 7 5 x 2 2 72 18 189 5 x 7 2 x 14 5 x 7 = 35 5 x 7 1/2
