Hello All,

I need help on this one. I'm sure it's simple, but I'm coming to the end off an all-nighter and so my brain has shut down.

Problem:If $\displaystyle k$ and $\displaystyle n$ are positive integers and $\displaystyle k$ is a divisor of $\displaystyle n$, then $\displaystyle \mathbb{Z}_n / \left< [k] \right> \approx \mathbb{Z}_k$.

Thanks,

Jhevon