The purpose of the present volume is to give a simple account of classical number theory, as well as to impart some of the historical background in which the subject evolved. While primarily intended for use as a textbook in a one-semester course at the undergraduate level, it is designed to be used in teachers" institutes or as supplementary reading in mathematics survey courses. The work is well suited for prospective secondary school teachers for whom a little familiarity with number theory may be particularly helpful. Формат издания: 16 см х 23,5 см.