Self study text for Elementary Number theory What is a very helpful book for elementary number theory? I would like to teach myself and I need help finding a book that would be able to do this.

There are several elementary number theory books available from Dover. Since they are really inexpensive you can get several and see the same material expressed in several ways, which may help you in self study.
http://store.doverpublications.com/by-subject-mathematics-theory.html
Friedbergs's "An Adventurers Guide to Number Theory" is off-beat but perhaps interesting. Also Dover, her's the Amazon link:
https://www.amazon.com/Adventurers-Guide-Number-Theory-Mathematics/dp/0486281337
