7 2 4 2 )(- 15 July 8, 2019 16 32 64 128 7 1 2 x 2 4 15 7 1 2 х 2 4 15 Х 7 4 2 х 7 2 15 0 7 4 2 15 9 6 7 2 x 2 ))= 4 15 3x M 4 2 m 7 2 15
