This introductory textbook takes a problem-solving approach to number
theory, situating each concept within the framework of an example or a
problem for solving. Starting with the essentials, the text covers
divisibility, unique factorization, modular arithmetic and the Chinese
Remainder Theorem, Diophantine equations, binomial coefficients, Fermat
and Mersenne primes and other special numbers, and special sequences.
Included are sections on mathematical induction and the pigeonhole
principle, as well as a discussion of other number systems. By
emphasizing examples and applications the authors motivate and engage
readers.