Numberphile

Tony Padilla does a 'magic trick' with Fibonacci numbers and talks about Zeckendorf decompositions.

Sophie Maclean demonstrates some fun properties of Euclid's Algorithm.

Fields Medallist Hugo Duminil-Copin would like a replica of his prize for outreach purposes. We interview him about the famous medal and his mathematical work.

Ed Copeland goes deep as we explore how we cracked an infinite sum relating to black holes.

Ben Sparks explores hidden depths of a seemingly simple game.

Matt Parker explains there's a new title-holder for the largest known reversible prime (or Emirp)

Date formats and other reasons for Pi Day grumpiness from emeritus astronomy professor Mike Merrifield.

Tony Padilla calculates Pi with Skittles - then uses UK population data to do the same thing. Results may vary!

Chief Meteorologist Dan Harris discusses (at length) one of the most famous equations in weather forecasting - the Quasi Geostrophic Omega Equation.

Richard Elwes discusses the original Big Numbers... long before the likes of Graham's Number and Tree(3). They are epic.

OEIS founder Neil Sloane on lines of primes, awkward primes... and a 'party pooper prime'.

Hannah Fry returns to Numberphile to showcase her art skills (and show us her new portrait at The Royal Society).

Rubik's Cube combinations quickly lead to some unimaginably large numbers. Featuring Richard Elwes.