Question

What is the remainder when 2⁸⁰ is divided by 15?
(1) 0 (2) 1 (3) 2 (4)3​

Answer 1

We need to find out Remainder [2^80 / 15]

= Remainder [ (2^4)^20 / 15]

= Remainder [ 16^20 / 15]

= Remainder [ 1^20 / 15]

= 1

So, we can say that the remainder when 2^80 is divided by 15 is 1

answer is 1