An organized search for primes of the form n*b^n-1.

Research in number theory, prime numbers and parity of arithmetic functions. Includes primality testing theorems and prime number chains. In English and French.

Infinite series over primes are the main topic in Hadamard-de la Vallée Poussin constants and in Brun's constant.

Web article by Johan G. van der Galiën showing that the primes do not satisfy certain statistical tests for randomness.

The discovery of nine and finally ten consecutive primes in arithmetic progression.

Visualization of prime numbers resembling an astronomical radiant or celestial pathway.

Short lesson.

Project Report on research into the 2nd Hardy-Littlewood conjecture and the relationship between the primes and chaotic systems by David O'Doherty. Includes program downloads.

An interactive animation of the sieve of Eratosthenes to obtain prime numbers (JavaScript required).

Browse all prime numbers of less than 10 digits. A prime number checker facility is also included.