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. From symmetry to Euclid's axioms, and from binary numbers to the prosecutor's fallacy, learn some maths without too much effort.

Eleven makes multiplication easy.

A quick look at an ancient problem.

Why there are only three regular polygons you can tile a wall with.

Fermat's little theorem and fake primes.

The mathematical problem with turbulence.