6 4 to 4 9 July 8, 2019 16 32 64 128 6 4 compared to 4 9 6 4 9 4 2 3 (- 4 6 4 9 3 ) = 6 4 9 4 2 6 4 x 4 9 6 4 5 4 9 6 4 7 9 4 6 to 4 90
