For a brief summary of what number theory is about, see Wikipedia, or for the basics, Number Theory and its History by Oystein Ore.
Any suggestions regarding additions or improvements to these pages are welcome and should be forwarded to Keith Matthews at webmaster@numbertheory.org
Please note that I usually do not respond to emails sending me "proofs" of FLT, the 3x+1 conjecture etc.
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Last modified 20th November 2015