23 3 x 5 8 July 8, 2019 16 32 64 128 3 x 5 2 8 4 23 23 3x 5 8 )= 78 3 4 x 23 5 8 23 x 5 4 3 8 3 5 23+- 5 23 x 3 5 23+- 8
