The least positive integer greater than 1 that divides $49^n+16 n-1$ for all positive integers $n$ is

The least positive integer greater than 1 that divides $49^n+16 n-1$ for all positive integers $n$ is
  1. $64$
  2. $49$
  3. $7$
  4. $2$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (25 Apr Shift 2)

Practice more Basic of Mathematics questions on Aicharya