Both arithmetic aficionados and the mathematically challenged will be equally captivated by new research that upends hundreds of years of popular belief about prime numbers.

Math enthusiasts challenge one another to find special prime numbers, including those that are palindromes and Smarandache numbers ...

The twin primes conjecture is one of the most important and difficult questions in mathematics. Two mathematicians have solved a parallel version of the problem for small number systems.

An effort in which thousands of people donate their computers' unused processing power uncovers the largest prime number so far known.