Puzzles sites

1.- Michael Winkler puzzles 
2.- Ken Duisenberg puzzles
3.- South Missouri State University, Problem Corner 
4.- Frank Rubin Contest Center
5.-  Macalester College POTW
6.- Bradley University POTW
7.- Nick's Mathematical Puzzles
8.- Lloyd King's, Aha! Puzzles
9.- Puzzles of LEONID MOCHALOV
10. Uncle Bob's Puzzle Corner
11. Ed Pegg, Jr. MathPuzzle pages.
 

Number patterns

1.- Patrick De Geest, Palprimes  
2.- Magic Stars and other patterns by Harvey Heinz 1, 2
3. Shyam Sunder Gupta's Number recreations
4. Walter Schnider's archive for recreational mathematics 1, 2
5. Mutsumi Suzuki, Magic Squares.

Prime lists & records

See the Records page
 

General references

1.- The Chris Caldwell Site & Glossary 
2.- Eric Weisstein’s MathWorld Encyclopedia  
3.- On-Line integer sequences Encyclopedia, by Neil s. Sloane.
4.- Prime Curios!, by G. L. Honaker, Jr. & Chris Caldwell    
5.- Warut Roonguthai selected bookmarks  
6.- Smarandache's works about primes
7.- John Cosgrave pages about several primes issues
8.- Mudd Math Fun Facts pages
9.- Open Directory, Number theory
10.- Google Directory, Number Theory

Codes for primes

1.- Proth.exe, by Yves Gallot. For the GFN search click here. 
2.- The Marcel Martin's Primo a primality prover software
3.- PrimeForm, a Prime Tester by Chris Nash. For the pfgw development click here.
4.- VFYPR by Tony Forbes
5.- Cycloprove by Preda Mihailescu 
6.- PARI-GP a precompiled version for Windows
7. Ubasic, V8.8, by Yuji Kida
8.- Fermat.exe for hunting small Fermat's prime factors, by Leonid Durman
9. Mersenne primes search by GIMPS

On Line applets

1. Factorization:
a) Jack Brennen
b) Factoris, by XIAO Gang
c) ECM by Dario Alpern
d) Joe  Crump

2. Primality:
a) The Nth prime page
b) Germany
c) Primes by XIAO Gang
d) Caltech
e) A
f) B

3. Chinese Reminder Theorem: a

Others Pages

1. Jim Martindale's Calculators on Line Center
2.- A Factorizer code, by Peter Meyer
3.- José Espinoza, Induction and Number Theory site

FAQ pages

1.- This site FAQ Page
2.- Chris Caldwell's Frequently Asked Questions about Primes
3.- Ask Dr Math's FAQ Page about many mathematic issue.
4. Looking for lost web pages? Use this link.