1 Billion is Tiny in an Alternate Universe: Introduction to p-adic Numbers

https://www.youtube.com/watch?v=3gyHKCDq1YA [www.youtube.com]

2023-03-11 08:22

The p-adic numbers are bizarre alternative number systems that are extremely useful in number theory. They arise by changing our notion of what it means for a number to be large. As a real number, 1 billion is huge. But as a 10-adic number, it is tiny!