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What Hot Dogs Can Teach Us About Number Theory

By Patrick Honner
November 18, 2021
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The Chinese remainder theorem is an ancient and powerful extension of the simple math of least common multiples.

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The Simple Math Behind the Mighty Roots of Unity

By Patrick Honner
September 23, 2021
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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.

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How to Find Rational Points Like Your Job Depends on It

By Patrick Honner
July 22, 2021
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Using high school algebra and geometry, and knowing just one rational point on a circle or elliptic curve, we can locate infinitely many others.

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How to Solve Equations That Are Stubborn as a Goat

By Patrick Honner
May 6, 2021
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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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The Mysterious Math of Perfection

By Patrick Honner
March 15, 2021
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Enter the world of perfect numbers and explore the mystery mathematicians have spent thousands of years trying to solve.

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The Crooked Geometry of Round Trips

By Patrick Honner
January 13, 2021
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Imagine if we lived on a cube-shaped Earth. How would you find the shortest path around the world?

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Some Math Problems Seem Impossible. That Can Be a Good Thing.

By Patrick Honner
November 18, 2020
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Struggling with math problems that can’t be solved helps us better understand the ones we can.

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The Simple Math Problem We Still Can’t Solve

By Patrick Honner
September 22, 2020
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Despite recent progress on the notorious Collatz conjecture, we still don’t know whether a number can escape its infinite loop.

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The Math of Social Distancing Is a Lesson in Geometry

By Patrick Honner
July 13, 2020
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How to safely reopen offices, schools and other public spaces while keeping people six feet apart comes down to a question mathematicians have been studying for centuries.


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