I’d like today to share a piece from 2017. Gaussian Primes are a fun topic, as they’re one of those things that steps into group theory without being too abstract. And they show how we can abstract a familiar enough idea — here, prime numbers — into something that applies in new contexts. In this case, in complex numbers, which are looking likely to be the running theme for this year’s A-to-Z.
Later in 2017 I talked talk about prime numbers in general, and how “prime” isn’t an idea that exists in the number itself. It exists in the number and the kind of number and how multiplication works for that kind of number.