Numberphile - Videos about Numbers and Stuff
James Grime is a mathematician and public speaker on behalf of the Millennium Mathematics Project from the University of Cambridge.

When not talking to Numberphile, he runs his own YouTube channel called singingbanana.

Dr Ria Symonds is Further Mathematics Teaching Officer at the University of Nottingham.

Her favourite number is 16.

Roger Bowley is an emeritus professor of physics at the University of Nottingham who is still actively involved in research.

He will be familar to viewers of our sister video project, Sixty Symbols.

Matt Parker is a "stand-up mathematician" with his own unique brand of comedy and maths.

He's based at Queen Mary College, University of London, and his own website can be found at

Special guest Ron Graham has a list of accomplishments almost as long as the famous number which bears his name.

See his webpage here.
Holly Krieger is a mathematician at MIT.

Here is her website.
David Eisenbud is a mathematics professor and also director of the Mathematical Sciences Research Institute (MSRI) in Berkeley.

More on David here.

John Conway is another special guest and math superstar who will need no introduction to number enthusiasts.

Among his countless accomplishments was inventing the Game of Life, with which he has a love/hate relationship.

Edward Frenkel is a mathematician at the University of California, Berkeley.

He is the author of best-selling Love and Math.

Carlo H. Séquin is a professor in the computer sciences division at U.C. Berkeley.

His office is filled with wonderful mathematical toys!

Professor Phil Moriarty is a physicist and expert on nanoscience at the University of Nottingham.

Phil is a regular contributor to the Sixty Symbols video project.

Laurence Eaves is a physics professor at University of Nottingham and a fellow of the Royal Society.

He's also a regular on Sixty Symbols and he loves talking about the fine structure constant.

Physicist Dr James Clewett is a self-confessed computer game geek.

He is a former world champion Tetris player. More about James at

Antonio 'Tony' Padilla is Lecturer in Physics at the University of Nottingham and a Royal Society Research Fellow. His favourite number is 5 because that's how many European Cups Liverpool FC have won.

Tony's webpage is here.

Rob Eastaway is a man of many talents and respected writer and speaker on all things mathematical (and cricket!)

Rob's website is here:

Ed Copeland is a particle physicist at the University of Nottingham and a viewers' favourite at our Sixty Symbols video project.

Ed's webpage is here.

Paul Smith is an expert on French culture and lectures at the University of Nottingham.

Paul's university webpage.

And catch him on Words of the World.

University of Oxford's Thomas Woolley's research interests include reaction-diffusion models with respect to patterning on stingrays.

His personal website is here.

Simon Singh is one of the UK's best-known science/maths writers and has many strings to his bow.

Simon's website. He also Tweets.

Professor John Hunton works at the University of Leicester and has an interest in aperiodic ordered patterns and tilings. His kitchen tiles are amazing!

John's university webpage.

Alex Clark is a lecturer at the University of Leicester's Department of Mathematics. His research interests include Minimal Sets of Foliations and Flows and Tiling Spaces.

Alex's university webpage here.


Dr Meghan Gray is an astronomer and is more frequently seen on our sister sites Deep Sky Videos and Sixty Symbols.

She's based at the University of Nottingham. Meghan's webpage is here.

Italian Gerardo Adesso works at the University of Nottingham and lectures in applied mathematics.

His research interests include Quantum Information Theory.

Katie Steckles is a mathematician with a PhD in Topology.

She is heavily involved with public engagement with maths.

Here's her website.

Professor Brian Butterworth is an expert on cognitive neuropsychology and his interests include the learning disabaility "dyscalculia".

He is based at University College London.

Steve Mould is a science presenter who appears in various television programs and live shows.

Check out his website.

Pete Watts is in the final stages of his PhD in theology at the University of Nottingham and is also a regular lecturer.

Pete also features in the Bibledex videos, another collaboration with Brady Haran.

Alex Bellos is the author of the best-selling Alex's Adventures in Numberland (sold in the US as Here's Looking at Euclid). He's also an expert on Brazilian football.

Alex's website. Alex also Tweets.

Video journalist Brady Haran is the man who makes all the videos.

His other successful projects include The Periodic Table of Videos and Sixty Symbols.

Links to all Brady's work at

Brady Haran
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