Math

In one day, 433 people won the Philippine lottery jackpot. What were the chances?

Pick an unusual winning poker hand in this math puzzle

A traditional card deck happens to dodge a tricky poker paradox. Other poker variants aren’t so lucky

Neither a square nor prime number, 2026 is still intriguing

Hidden Fibonacci numbers, a new shape and the search for a grand unified theory of mathematics are among our choices for most exciting findings of the year

In geometry, there are surfaces that do without an inside or outside—and some need at least four dimensions to exist

Sort out a rectangle tangle in this math puzzle

A type of chaos found in everything from prime numbers to turbulence can unify a pair of unrelated ideas, revealing a mysterious, deep connection that disappears without randomness

Mathematics is not only an esoteric vocation but also indispensably alive and deeply human

Solve a holey shape conundrum in this math puzzle

“Kryptos has not been solved,” said artist Jim Sanborn after releasing his parting clues to the “K4” section of his sculpture puzzle

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years later