Prime numbers, divisible only by 1 and themselves, hate to repeat themselves. They prefer not to mimic the final digit of the preceding prime, mathematicians have discovered. “It is really, really ...

I'm curious to know if there's some formal name for this: Multiplying any series of numbers by the number nine, when the numbers of the product are added together, will always total nine (and ...

Optical illusions continue to draw people in, and a new one is garnering plenty of attention. At first glance, the picture appears very ordinary, consisting of a large block of numbers, with the digit ...

About a year ago, the theoretical chemist Salvatore Torquato met with the number theorist Matthew de Courcy-Ireland to explain that he had done something highly unorthodox with prime numbers, those ...