Factorization and weights of Proth coefficients.
Web article by Johan G. van der Galiën. Shows that smaller starting digits are more common for primes below 10^9.
Archived questions and answers at different levels.
Entropy of a nonnegative adjacency matrix related to prime numbers.
Makes a statement about the number of primes between the squares of odd numbers, and provides a proof of Goldbach's conjecture.
Software, results and other resources.
An organized search for primes of the form n*b^n-1.
An article by Pascal Sebah with the results of computation of the twin primes up to 5.10^15.
Notes and links compiled by Mark Watkins on the relation of the Riemann zeta function to the distribution of prime numbers.
Findings using an exhaustive search by Thomas J Engelsma.
Includes biographies on many mathematicians.
Index to hundreds of prime-related articles in Eric Weisstein's MathWorld.
Provides a collection of tools and interesting pages for testing, visualizing, and understanding natural numbers.
With applets to demonstrate properties of primes.
Explains this method of visually representing the distribution of primes and the relationships between factors and products.
Introductory text on the theory of prime numbers and number fields. Contains proofs of some important theorems including the fundamental theorem of arithmetic.
Tony Forbes' extensive collection of special types of prime clusters.
Links and references related to primes and factoring.
Enter a natural number, check it and find the nearest prime.
Browse all prime numbers of less than 10 digits. A prime number checker facility is also included.
The "Riesel Prime Search" project is searching for primes of the form k·2^n-1, odd k.
Sieves and factoring for small numbers. Download primes below 8 billion.
The discovery of nine and finally ten consecutive primes in arithmetic progression.
Explore interactively the Goldbach conjecture, the distribution of prime twins, the prime number theorem.
Prime number research, records and resources. Includes largest known primes, finding and proving primes, glossary, curios, links.
Carlos Rivera's collection of problems and puzzles related to prime numbers.
Includes twin prime counts, tables of first occurrence prime gaps, papers.
Investigation into patterns in the distribution of the primes by visualizing them.
Index to many prime-related articles.
Records, statistics, curios and puzzles about primes reading the same backwards. Compiled by Patrick De Geest.
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us