Overview: Presents not only theoretical results, but gives real-life technical applications of number theory.Illustrates the close connection between number theory, graph theory, the theory of groups, and geome.This book provides an overview of many interesting properties of natural numbers, demonstrating their applications in areas such as cryptography, geometry, astronomy, mechanics, computer science, and recreational mathematics. In particular, it presents the main ideas of error-detecting and error-correcting codes, digital signatures, hashing functions, generators of pseudorandom numbers,
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