RRB NTPC · Question 94
How much is the remainder when Anubha divides 15^300 by 16? A. 7 B. 1 C. 5 D. 9
Show answer & explanation
Answer: (D) B
Explanation
15 ≡ −1 (mod 16), so 15³⁰⁰ ≡ (−1)³⁰⁰ = 1. The remainder is 1.
Railways PYQCBT 1 2016
RRB NTPC · Question 94
Answer: (D) B
15 ≡ −1 (mod 16), so 15³⁰⁰ ≡ (−1)³⁰⁰ = 1. The remainder is 1.