What you always wanted to know about prime numbers

In the English- speaking world, we have a saying. “All prime numbers are odd, except for 2 which is the oddest of all”. But what if we told you that 2 is not prime. Nor is 5. Nor is 13. In fact, roughly half of all prime numbers you know are not prime.

This week at the HLFF Blog, Sophie Maclean investigates Gaussian prime numbers. Learn more here: HLFF Blog

Image caption: Carl Friedrich Gauss, after whom the Gaussian integers are named. Image credit: public domain.