2 2c 6 July 8, 2019 16 32 64 128 2c 2 6a 2c 2 6c 2c 2 6c 4 2c 2 6 c 7c C 2 2c 63 2 2c ≥ 6 2 2c ≤ 6 2c 2 9c 6 9c 14 2c 2 33 65 2c 2 14c 60 2c 2 4c 6 2c 2 c 6 Factor c 2 2c 63 6c 2 2c 4 0
