Math

Which of these knots are secretly “unknots”? Try our math puzzle to find out

Card dealers create a unique deck with each shuffle, something computers cannot replicate

Winning more than $1 billion in Powerball is an exciting possibility, but keeping a cool math mind can help you decide whether that opportunity is worth your $2 bet

Mathematicians have unraveled a key conjecture about knot theory

People in prisons and jails have contributed to some of the greatest ideas in mathematics

Figure out how to split the square in this math puzzle

Find out how this simple algorithm from the 1960s catches your typos

Though the Fibonacci sequence shows up everywhere in nature, these young mathematicians were surprised to find it in the answer to a variation of the pick-up sticks problem⁠—a nearly two-century-old form of puzzle

AI models supposedly did well on International Math Olympiad problems, but how they got their answers reminds us why we still need people doing math

When she was just 17 years old, Hannah Cairo disproved the Mizohata-Takeuchi conjecture, breaking a four-decade-old mathematical assumption

Can “finitism” possibly describe the real world?

How complex can a simple game be? Tetris pushes even supercomputers to their limits and amazes mathematicians