Number Theory

Mathematics Archives - Topics in Mathematics - Number Theory
Number Theory Centres An alphabetical list
ACTA ARITHMETICA The journal publishes papers on the Theory of Numbers
Algebraic Number Theory Archives - UIUC University of Illinois at Urbana-Campaign mirror site in the UK
Archives of NMBRTHRY@LISTSERV.NODAK.EDU
Arithmetic properties of Binomial Coefficients by Andrew Granville
Basics of Computational Number Theory by Robert Campbell
GIMPS MERSENNE PRIME WORLD RECORD LARGEST FOUND BY GORDON SPENCE
Elementary Number Theory - Kenneth H. Rosen
Enquiring into number things - Some numerical amusements by Peter Macinnis
Factorizer: A Factorization and Prime Number Program
The On-Line Encyclopedia of Integer Sequences Maintained by N. J. A. Sloane
Journal of Number Theory at OSU
Franz Lemmermeyer's Unsolved Problems in Algebraic Number Theory University of Heidelberg
Lidia - A C++ Library For Computational Number Theory
The List of Largest Known Primes by Chris K. Caldwell
The Magma Computational Algebra System for Algebra, Number Theory and Geometry
The Mathematical Atlas - 11. Number Theory by Dave Rusin
Mathematical Facts John Handley High School
Mathematical Induction by Jose Espinosa
MathPages: Number Theory by Kevin Brown
Modular Arithmetic Index
NTL: A Library for doing Number Theory by Victor Shoup
Number theory Mathematics Department of the University of Ferrara
Number-Theoretic Hacks by David Eppstein
Number Theory -- from MathWorld
Number Theory Web by Keith Matthews
Australian mirror site, Italian mirror site, British mirror site
Number theory ftp sites/calculator programs/archives
On-Line Encyclopedia of Integer Sequences by Sloane, N. J. A
Open Questions: Number Theory
Paul's TI-92 Number Theory Archive -- v1.0
Vignettes on Automorphic Forms, Representations, L-functions, and Number Theory
Welcome to the Hotel Infinity (MegaMath)