- #1

future_phd

- 19

- 0

## Homework Statement

Prove that any integer n >= 2 such that n divides (n-1)! + 1 is prime.

## Homework Equations

## The Attempt at a Solution

I'm having trouble getting started, I have no idea how to approach this, can someone give a hint on where to begin maybe because I'm just not seeing it.