If a shape has equal sides with 90 degree angles between them then it's a square, right? Well, not quite...

There are triangular numbers hiding all over the standard multiplication table! Find out how to discover them in this article!

After 2000 years of searching we only know of 51 perfect numbers and they're all even. What else do and don't we know about these rare and precious jewels of maths?

Nobody has ever found an odd perfect number. So do they exist at all and, if yes, what do they look like?

The great thing about geometry is that you can sometimes prove things using pictures. Enjoy these three great visual proofs of Pythagoras' theorem!

We were very excited to meet Andrew Wiles this summer! In this interview and videos he tells us what it was like to prove Fermat's Last Theorem, and what it feels like to do maths.

From cancer treatments to counting trees: the maths behind image analysis makes it all possible.

To celebrate the centenary of the general theory of relativity we asked physicist David Tong to explain the theory and the equation that expresses it. Watch the video or read the article!