**Description**

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.

##### Items related to the subject *Mathematics*