# Homework Help: What is the order of (1 2)(3 4) in S_4?

1. Feb 7, 2013

### Artusartos

1. The problem statement, all variables and given/known data

What is the order of (1 2)*(3 4) in $S_4$

2. Relevant equations

3. The attempt at a solution

(1 2)(3 4)(1 2)(3 4) = (1)(2)(3)(4)...so the order is 2.