Your card number is carefully structured. The very first digit is what’s known as the major industry identifier. A 4 means ...

Die numbers, introduced on British coins in 1863, tracked production quality. Found on select 19th-century issues, they ...

Lottery officials, even some who have previously acknowledged concern with the national lottery system, contend the repeated numbers are nothing more than chance. "While such repeats are rare and ...

Many complicated advances in research mathematics are spurred by a desire to understand some of the simplest questions about numbers. How are prime numbers distributed in the integers? Are there ...

Prime numbers are only divisible by themselves and one. Robert Brook via Getty Images In the 17th century, French monk and mathematician Marin Mersenne developed a method to find prime numbers: values ...