Find the remainder when 8^123 is divided by 11.
Note
Reduce the base modulo 11 and use cyclic powers. This gives 8^123 ≡ 6 (mod 11).
Find the remainder when 8^123 is divided by 11.
Reduce the base modulo 11 and use cyclic powers. This gives 8^123 ≡ 6 (mod 11).