This post was part of the Chalkdust 2016 Advent Calendar.
You might also like…
- Read about Maxamillion Polignac's adventures in a prime-hating world
- An unexpected way to beat the odds in this classic game
- A great way to waste a lot of paper
- Behind today's door... a quiz!
- An easy equation to remember for your driving theory test, with dangerous consequences
- We tell you what's popular in the world of maths, so you can get ahead of the curve!