I What to include in an introduction on number theory?

  • Thread starter matqkks
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I am writing an introduction to a first course in elementary number theory. The topics are linear Diophantine equations, modular arithmetic including FLT and Euler's Generalization, quadratic residues and Non - linear Diophantine equations.
How can I write an introduction to this showing linkage between the various topics and hook potential students to do this course? What is the motivation on covering these topics?


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Here are some links I've searched yesterday on modular arithmetic and applications.



Modular arithmetic alone is quite easy. During my search I came across some pages which provided a short and typical introduction:

I would take a few of those small examples and then turn to RSA as the major application here. Other interesting applications are error correcting codes or encryption in general.

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