Elementary introduction to number theory

Elementary introduction to number theory by Calvin T. Long. hardcover edition. ISBN: 9780669627039.

This accessible, highly regarded volume teaches the theory of numbers. It incorporates especially complete and detailed arguments, illustrating definitions, theorems, and subtleties of proof with explicit numerical examples whenever possible. The author has organized the results and constructed the arguments in such a way as to reveal the essential structure of the subject and to impart an understanding of the various methods of proof as methods rather than tricks. Hundreds of exercises, including computer-oriented problems, are included.