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# Number theory

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Number theory is a part of mathematics. It explains what some types of numbers are, what properties they have, and ways that they can be useful.

Topics in number theory are:

Important theorems in number theory are:

## Applications

A well-known application of number theory is encrypted messaging (encryption). Data compression also makes use of the field.

## Further reading

• G.H. Hardy; E.M. Wright (2008) [1938]. An introduction to the theory of numbers. Oxford University Press. ISBN 978-0-19-921986-5.
• Vinogradov, I.M. (2003) [1954]. Elements of Number Theory (reprint o 1954 ed.). Mineola, NY: Dover Publications.
• Ivan M. Niven; Herbert S. Zuckerman; Hugh L. Montgomery (2008) [1960]. An introduction to the theory of numbers (reprint of the 5th edition 1991 ed.). John Wiley & Sons. ISBN 978-81-265-1811-1.
• Kenneth H. Rosen (2010). Elementary Number Theory (6th ed.). Pearson Education. ISBN 978-0-321-71775-7.
• Borevich, A. I.; Shafarevich, Igor R. (1966). Number theory. Pure and Applied Mathematics. 20. Boston, MA: Academic Press. ISBN 978-0-12-117850-5. MR 0195803.
• Serre, Jean-Pierre (1996) [1973]. A course in arithmetic. Graduate texts in mathematics. 7. Springer. ISBN 978-0-387-90040-7.

## Other websites

• Media related to [[commons:Lua error in Module:WikidataIB at line 496: attempt to index field 'wikibase' (a nil value).|Lua error in Module:WikidataIB at line 496: attempt to index field 'wikibase' (a nil value).]] at Wikimedia Commons
• Number Theory
• Number Theory Web