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Textbook in PDF format
S. Arun-Kumar, called "glorious" student presents his work in number theory. This document covers almost all vital topicss in number theory such as : Divisibility and the Euclidean Algorithm, Linear congruences, Chinese Remainder Theorem and Fermat's Little Theorem... etc.
Book is adressed to high school students, students who are preparing for international olympiads, undegraduate students
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