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Maths in a minute

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

Mysterious 6174

Start with your favourite four-digit number, follow these simple steps, and you'll never guess what happens next!
Looking for love?

Find out how OKCupid's algorithm works.
Maths in a minute: The d'Hondt method

How does the voting system for the European Parliament elections work?
No maths for Europe

How should the seats in the European Parliament be allocated?
Phantom jams

How to unjam traffic.