M 2 6m 8 July 8, 2019 16 32 64 128 M 2 6m 8 0 2m 2 8 m 2 6m 8 M 3 6m 2 12m 8 0 M 2 6m 8 m 4 M 3 6m 2 12m 8 M 3n 2 6m 2n 2 8m n 2 m 6 m 2 m 8 6 m2= 6 m 2