4 x 7 ) 2x 2 3x 13 )- 2 July 8, 2019 16 32 64 128 4 x 7 )+ 2x 2 3x 13 )- 2 2x 7 2 x 13 4 7x-1 8=3 2+2 2x 4 7x3 2
