what is the remainder when ( 55 ) ( 57 ) is divided by 7 ?
"( 55 ) ( 57 ) = ( 56 - 1 ) ( 56 + 1 ) = 56 ^ 2 - 1 which is 1 less than a multiple of 7 . then the remainder will be 6 . the answer is e ."
reminder(multiply(57, 55), 7)