Ramsey number

Too big to write but not too big for Graham

Meet the number that's bigger than the observable Universe!

Sometimes a mathematical object can be so big that, however disorderly we make the object, areas of order are bound to emerge. Imre Leader looks at the colourful world of Ramsey Theory.

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.

Inverse problems save the day

Inverse problems are mathematical detective problems. They can help solve crimes, are used in medical imaging, and much more.
No maths for Europe

How should the seats in the European Parliament be allocated?
The PEMDAS Paradox

It looks trivial but it keeps going viral. What answer do you get when
you calculate 6÷ 2(1+2)? David Linkletter explains the source of the confusion.
Phantom jams

How to unjam traffic.
A cute problem goes big

Mathematicians have revived an old approach to solving the famous Riemann hypothesis.

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