- #1

Kalinka35

- 50

- 0

## Homework Statement

Is there a proof that the number of elements in a conjugacy class of a group has to divide the order of the group?

Everyone seems to cite it left and right but I've not seen a proof of it anywhere.

## Homework Equations

## The Attempt at a Solution

I'm guessing Langrange's Theorem may come into play but since conjugacy classes themselves aren't subgroups I'm not sure how.