# Math Help - Question In A uniqe Factorization Domain

1. ## Question In A uniqe Factorization Domain

Hi all;
I need The proof of the followig statement:
Lrt D be A uniqe Factorization Domain Then
every prime is irreducible and evey irreducible is prime

Best wishes

2. 1) What is the definition of "prime"?

2) What is the definition of "irreducible"?