Kelsey Houston-Edwards

Contributing Writer

A visualization of the tower formed by the 3-adic numbers
Abstractions blog

An Infinite Universe of Number Systems

October 19, 2020

The p-adics form an infinite collection of number systems based on prime numbers. They’re at the heart of modern number theory.

About the author

Kelsey Houston-Edwards is a freelance math and science writer and the former host of the online show PBS Infinite Series. You can find more of her writing at