Elementary number theory with applications - Koshy, Thomas (Academic Press, 2007)
Errata slip inserted
Includes bibliographical references and index
Fundamentals -- Divisibility -- Greatest common divisors -- Congruences -- Congruence applications -- Systems of linear congruences -- Three classical milestones -- Multiplicative functions -- Cryptology -- Primitive roots and indices -- Quadratic congruences -- Continued fractions -- Miscellaneous nonlinear diophantine equations