# An Introduction to the Theory of Numbers

- By: Leo Moser
- Publisher: The Trillia Group
- Source: [Open Textbook Library](https://open.umn.edu/opentextbooks/textbooks/an-introduction-to-the-theory-of-numbers)
- Licence: Attribution
- PDF: http://www.trillia.com/dA/moser-number-us-one.pdf

This book, which presupposes familiarity only with the most elementary concepts of arithmetic (divisibility properties, greatest common divisor, etc.), is an expanded version of a series of lectures for graduate students on elementary number theory. Topics include: Compositions and Partitions; Arithmetic Functions; Distribution of Primes; Irrational Numbers; Congruences; Diophantine Equations; Combinatorial Number Theory; and Geometry of Numbers. Three sections of problems (which include exercises as well as unsolved problems) complete the text.