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## Latest Articles

### How Big Is Infinity?

September 27, 2022

Of all the endless questions children and mathematicians have asked about infinity, one of the biggest has to do with its size.

### How Can Infinitely Many Primes Be Infinitely Far Apart?

July 21, 2022

Mathematicians have been studying the distribution of prime numbers for thousands of years. Recent results about a curious kind of prime offer a new take on how spread out they can be.

May 25, 2022

### What a Math Party Game Tells Us About Graph Theory

March 24, 2022

Play this simple math game with your friends to gain insights into fundamental principles of graph theory.

### Why Triangles Are Easy and Tetrahedra Are Hard

January 31, 2022

The triangle angle sum theorem makes working with triangles easy. What happens when you can’t rely on it?

### What Hot Dogs Can Teach Us About Number Theory

November 18, 2021

The Chinese remainder theorem is an ancient and powerful extension of the simple math of least common multiples.

### The Simple Math Behind the Mighty Roots of Unity

September 23, 2021

Solutions to the simplest polynomial equations — called “roots of unity” — have an elegant structure that mathematicians still use to study some of math’s greatest open questions.

### How to Find Rational Points Like Your Job Depends on It

July 22, 2021

Using high school algebra and geometry, and knowing just one rational point on a circle or elliptic curve, we can locate infinitely many others.

### How to Solve Equations That Are Stubborn as a Goat

May 6, 2021

Math teachers have stymied students for hundreds of years by sticking goats in strangely shaped fields. Learn why one grazing goat problem has stumped mathematicians for more than a century.

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