During class we learned about the fiest isomorphism theorem, we were also told that it can be applied to find (the number of) group homomorphisms between two groups. 

Now as an example I'm trying to find group homomorphisms between $A\_n$ and $C\*$

So I think that I have to find a smart finction $g$ which takes $A\_n/Ker(f)$ to C\* 

However how do I go about it?