Elementary Number Theory & Its Applications (7版)

●Now available as a Pearson eText. This new interactive version of the book  provides many interactive applets that can be used by students for some common computations in number theory and to help understand concepts and explore conjectures. ●A collection of cryptographic applets is provided along with algorithms for computations in number theory,  These include applets for  encryption, decryption, cryptanalysis, and cryptographic protocols,  addressing  both classical ciphers and the RSA cryptosystem. Cryptographic applets can be used for individual, group, and classroom activities.

1.The Integers 2.Integer Representations and Operations 3.Greatest Common Divisors 4.Prime Numbers 5.Congruences 6.Applications of Congruences 7.Some Special Congruences 8.Arithmetic Functions 9.Cryptography 10.Primitive Roots 11.Applications of Primitive Roots and the Order of an Integer 12.Quadratic Residues 13.Decimal Fractions and Continued Fractions 14.Nonlinear Diophantine Equations and Elliptic Curves 15.The Gaussian Integers