More from Chalkdust
Chalkdust Book of the Year 2021
We announce the shortlist of our favourite maths-themed books of last year
Rewatch the Issue 12 virtual launch event
Now available to catch up on YouTube
2018 Fields medal winners
Introducing the work that has won mathematics' most famous award
Christmas conundrum #1
Solve this and you could be the lucky winner of a Chalkdust T-shirt
Prize crossnumber, Issue 06
Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
Hunting for polydivisibles
The search for polydivisible numbers in different bases: how many can you find?