M 2 m 2 3 4 5 July 8, 2019 16 32 64 128 M 2 2m 3 m 4 5 M 2 5m 4 )( m 2 7m 3 3 m 2 )- 5 8 2 m 4 4 m 2 n 6 3 m 2 n 5 (m - 3) ^ 2