This textbook is intended to serve as a onesemester introductory course innumber theory and in this second edition it has been revised throughout andmany new ex... » 

This textbook is intended to serve as a onesemester introductory course innumber theory and in this second edition it has been revised throughout andmany new exercises have been added. Historical perspective is included andemphasis is given to some of the subjects applied aspects in particular thefield of cryptography is highlighted. At the heart of the book are the majornumber theoretic accomplishments of Euclid Fermat Gauss Legendre and Eulerand to fully illustrate the properties of numbers and concepts developed in thetext a wealth of exercises have been included. It is assumed that the readerwill have pencil in hand and ready access to a calculator or computer. Forstudents new to number theory whatever their background this is a stimulatingand entertaining introduction to the subject. «