- #1

nalkapo

- 28

- 0

**A question about the search for normal subgroups- Conjugacy classes!?**

## Homework Statement

**Aut(Z*_24) has Conjugacy classes of order 1, 21, 24, 24, 42 and 56.**

Show that Aut(Z*_24) is simple.

Show that Aut(Z*_24) is simple.

__Note: Aut(Z*_24) is sometimes written as U(Z_24)__

Thanks for any idea or answer...

## Homework Equations

## The Attempt at a Solution

I have no idea! At first, why 24 is written 2 times?