# Math Help - Determine the subgroups

1. ## Determine the subgroups

Determine the subgroups lattice for Z_(qp^n), where p and q are primes and n is some positive integer.

Z_(qp^n) I don't know how to write this but qp^n is a subscript on Z!

2. Originally Posted by mandy123
Determine the subgroups lattice for Z_(qp^n), where p and q are primes and n is some positive integer.

Z_(qp^n) I don't know how to write this but qp^n is a subscript on Z!
The subgroups are: $n\mathbb{Z}_{qp^n}$ where $n$ divides $qp^n$. And this is a complete list.