Written by a distinguished mathematician and teacher, this undergraduate text uses a combinatorial approach to accommodate both math majors and liberal arts students. In addition to covering the basics of number theory, it offers an outstanding introduction to partitions, plus chapters on multiplicativity-divisibility, quadratic congruences, additivity, and more.
![ɷ[george mase] schaum's outline of theory and probl](https://img.pdfslide.net/doc/110x75/568cabb31a28ab186da69bb8/george-mase-schaums-outline-of-theory-and-probl.jpg)
