本书是一本经典的数论名著，书的内容取材于作者在牛津大学、剑桥大学等大学授课的讲义。书中从各个不同角度对数论进行了阐述，包括素数、无理数、同余、费马定理、同余式、连分数、不定式、二次域、算术函数、分划等等。第二作者为此书每章增加了必要的注解地，便于读者理解并进一步学习。 　　本书读者对象为大学数学专业学生以及对数论感兴趣的专业人士。

本书是一本经典的数论名著，取材于作者在牛津大学、剑桥大学等大学授课的讲义。主要包括素数理论、无理数、费马定理、同余式理论、连分数、用有理数逼近无理数、不定方程、二次域、算术函数、数的分划等内容。每章章末都提供了相关的附注，书后还附有译者编写的相关内容的最新进展，便于读者进一步学习。. 本书可供数学专业高年级学生、研究生、大学老师以及对数论感兴趣的专业读者学习参考。

G. H. Hardy was one of this century's finest mathematical thinkers, renowned among his contemporaries as a 'real mathematician ... the purest of the pure'. He was also, as C. P. Snow recounts in his Foreword, 'unorthodox, eccentric, radical, ready to talk about anything'. This 'apology', written in 1940 as his mathematical powers were declining, offers a brilliant and engaging account of mathematics as very much more than a science; when it was first published, Graham Greene hailed it alongside Henry James's notebooks as 'the best account of what it was like to be a creative artist'. C. P. Snow's Foreword gives sympathetic and witty insights into Hardy's life, with its rich store of anecdotes concerning his collaboration with the brilliant Indian mathematician Ramanujan, his aphorisms and idiosyncrasies, and his passion for cricket. This is a unique account of the fascination of mathematics and of one of its most compelling exponents in modern times.