Find the remainder when 41×73 + 41 − 73 is divided by 9.
Note
Compute each term modulo 9; the expression is congruent to 0 modulo 9.
Find the remainder when 41×73 + 41 − 73 is divided by 9.
Compute each term modulo 9; the expression is congruent to 0 modulo 9.