2 8 10 7 5 July 8, 2019 16 32 64 128 X =( 8 2 * 10 5 )/ 7 2 х 8 10 5 х 7 2 5 8 divided by 7 10 10 2 8 minus 7 5 8 10 2 8 minus 7 5 8 in simplest form 8 2 7 30 of 60 10 5 9 7 mod 2 8 * 5 10