## Stream: IMO-grand-challenge

### Topic: 1969 problem 1

#### Kevin Lacker (Sep 25 2020 at 21:59):

Okay, I wrote up a pull request formalizing 1969 problem 1. https://github.com/leanprover-community/mathlib/pull/4261 I'd love to get someone to take a look!

#### Kevin Lacker (Sep 25 2020 at 22:00):

FYI the problem is: Prove that there are infinitely many natural numbers $a$ with the following property: the number $z = n^4 + a$ is not prime for any natural number $n$ . I chose this one because it seemed easy.

Last updated: Jul 29 2021 at 07:10 UTC