
How to Identify a Prime Number without a Computer
For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years later
Manon Bischoff is a theoretical physicist and an editor at Spektrum der Wissenschaft, the German-language sister publication of Scientific American.

How to Identify a Prime Number without a Computer
For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years later

How an Error in Cult Classic Game Doom Sparked New Appreciation for Pi
What would the world look like if we changed the value of pi? Whether in the real world or a game environment, the answer is complex

A Mathematical Paradox Shows How Combining Losing Strategies Can Create a Win
In certain circumstances, losses create a sure path to victory, an idea with implications for biology and cancer therapy

How Many People Have Ever Lived on Earth?
Is it really possible that half of all people who have ever been age 65 or older are still alive today? We explore the amazing mathematics of demography to find out

How the Math of Shuffling Cards Almost Brought Down an Online Poker Empire
Card dealers create a unique deck with each shuffle, something computers cannot replicate

Math Breakthroughs from Behind Bars
People in prisons and jails have contributed to some of the greatest ideas in mathematics

Some Mathematicians Don’t Believe in Infinity
Can “finitism” possibly describe the real world?

The Impossible Problems Hidden in a Simple Game of Tetris
How complex can a simple game be? Tetris pushes even supercomputers to their limits and amazes mathematicians

This Number System Beats Binary, But Most Computers Can’t Use It
Why do computers only work with the numbers 0 and 1? There are machines that process three digits with more efficiency than you might expect

The Game Theory Hidden in the Mind of Sherlock Holmes
In the early 20th century, a mathematician and economist sought the optimal strategy for Holmes to escape Moriarty’s pursuit

Our World Is Getting More Complicated. Here’s the 19th-Century Math That Proves It
Nothing in the cosmos is in equilibrium, which means entropy is on the rise

The Creepy Calculus of Measuring Death Risk
Meet micromorts and microlives, statistical units that help mathematicians to calculate risk

Physicists Build a ‘Black Hole Bomb’ in the Laboratory
Astronomical amounts of energy could be extracted from black holes—to build a gigantic bomb, for example. Experts have now implemented this principle in the laboratory

Zero Is Foundational to Modern Mathematics. But It Was Rejected for Centuries
Conceptual problems, ideology clashes and xenophobia prevented the concept of zero from catching on for a long time. Today all mathematics is based on it

Prime Number Mystery Is Key to Magic: The Gathering Card Game Strategy
The popular fantasy card game Magic: The Gathering has a new card related to prime numbers. Now fans are trying to use it to tackle one of the biggest problems in mathematics

Alan Turing’s Lost Work Could Reveal How Tigers Got Their Stripes
The world-famous mathematician Alan Turing found a possible mechanism for iconic animal patterns thanks to differential equations

This More Than 380-Year-Old Trick Can Crack Some Modern Encryption
A little math from the 1600s can make what people send to a printer more vulnerable

Dennis Gaitsgory, Who Proved Part of Math’s Grand Unified Theory, Wins Breakthrough Prize
By solving part of the Langlands program, a mathematical proof that was long thought to be unachievable, Dennis Gaitsgory snags a prestigious Breakthrough Prize

Mathematicians Solve Decades-Old Spinning Needle Puzzle
For a long time, the Kakeya conjecture, which involves rotating an infinitely narrow needle, kept mathematicians guessing—until now

Abel Prize Goes to Pioneer Whose ‘Math Toolbox’ Can Be Used to Describe the Natural World
Masaki Kashiwara, this year’s Abel Prize winner, co-founded a new field of mathematics called algebraic analysis

Math Reveals the Formula for a Hollywood Blockbuster
Most movies follow one of six emotional arcs. Which one sells the most tickets?

How Anime Fans Stumbled upon a Mathematical Proof
When a fan of a cult anime series wanted to watch its episodes in every possible order, they asked a question that had perplexed combinatorial mathematicians for years

Are Cats Actually Liquid?
A physicist weighs in on the fluid feline meme

These Prime Numbers Are So Memorable That People Hunt for Them
Math enthusiasts challenge one another to find special prime numbers, including those that are palindromes and Smarandache numbers