
The Numberphile Podcast
Interviews with people who love numbers and mathematics. Hosted by Brady Haran, maker of the Numberphile series on YouTube.
Latest episodes

Jan 18, 2023 • 1h 6min
A Chain of Chance - with Michael Merrifield
Astronomer Mike Merrifield had terrible handwriting and dreamed of captaining a submarine - now he's an astronomer and world expert on galaxies.
Episode sponsored by Jane Street - check out their latest opportunities
Professor Michael Merrifield
Mike's Twitter
Mike Merrifield Video Playlist
Sixty Symbols - Physics videos, many featuring Mike
Deep Sky Videos
Messier Objects Playlist
Ralph Merrifield
Ralph Merrifield author page on Amazon
Galactic Astronomy by James Binney and Michael Merrifield
Hand-written version of Mike's 'Good Will Hunting' paper
And here is the published version
You can support Numberphile on Patreon like these people
With thanks to SLMath

Dec 13, 2022 • 44min
Finding a Path - with Tatiana Toro
From a challenging situation in Bogota to a prestigious job in US academia, Tatiana Toro wants to help others find their mathematical pathway.
Professor Toro is the new director of the Simons Laufer Mathematical Sciences Institute (SL Math).
SL Math website
Announcement of Professor Toro's appointment
MSRI is renamed SL Math
Professor Toro's University of Washington webpage
Podcast with David Eisenbud - Professor Toro's predecessor

20 snips
Jul 11, 2022 • 1h 14min
An Educated Adult - with Tadashi Tokieda
Tadashi Tokieda is a Professor of Mathematics at Stanford University - and a popular contributor to videos on our Numberphile video channel. But his path to mathematics was unusual.
Tadashi at Stanford
Tadashi videos on Numberphile
Lev Davidovich Landau
You can support Numberphile on Patreon like these people
With thanks to MSRI

May 29, 2022 • 37min
The Orchid Room and Cancer - with Hannah Fry
Professor Hannah Fry discusses her cervical cancer diagnosis - and subsequent attempt to make sense of it all.
Making Sense of Cancer - Showing on BBC2 on June 2 and then on BBC iPlayer
Telegraph Article
Hannah Fry website
Hannah Fry books - Amazon
Numberphile videos with Hannah
Hannah previously on the podcast
Macmillan Cancer Support
NHS Cancer help
You can support Numberphile on Patreon like these people
With thanks to MSRI

Apr 18, 2022 • 51min
A Passion for Big Numbers (and Liverpool FC) - with Tony Padilla
Tony Padilla is known on Numberphile for tackling the big numbers... But by day he's a cosmologist and life-long fan of Liverpool FC. Brady joined him at Anfield for a game against Watford.
Tony at the University of Nottingham
Order Tony's book Fantastic Numbers and Where to Find Them: A Cosmic Quest from Zero to Infinity --- Amazon US - Amazon UK - MacMillan US - Penguin UK
Some videos with Tony on Numberphile
And some videos with Tony on Sixty Symbols
The Sum of the Integers being -1/12
Liverpool v Watford on 2 April 2022
You can 'watch' the podcasts, including this one, on YouTube
This episode was supported by G-Research, a world-leading quantitative finance research firm, hiring the brightest minds to tackle the biggest questions in finance - learn more at gresearch.co.uk/numberphile/
You can support Numberphile on Patreon like these people
With thanks to MSRI
The Numberphile Podcast by Brady Haran

Mar 14, 2022 • 43min
The First and Last Digits of Pi
Data visualisation guru Martin Krzywinski has teamed up with composer Gregory Coles to make music based on Pi - the early digits AND the last known digits.
Three One Four: A Number of Notes
The project is a collaboration between Martin, Gregory Coles, and Emma Beauxis-Aussalet
On Bandcamp
YouTube track playlist
YouTube album discussions and score analysis
Martin Krzywinski
62.8 trillion digit computation of Pi
Some of Martin's previous Pi visualisations can be found here
This episode was supported by G-Research, a world-leading quantitative finance research firm, hiring the brightest minds to tackle the biggest questions in finance - learn more at gresearch.co.uk/numberphile/
You can support Numberphile on Patreon like these people
With thanks to MSRI

Feb 13, 2022 • 50min
An Infinite Debt - with Christopher Havens (Prisoner #349034)
Christopher Havens is serving a 25-year prison sentence for murder - but behind bars he's seeking redemption through advanced mathematics.
He has published an academic paper... and is bringing math to other inmates via The Prison Mathematics Project.
Catch this episode on YouTube
The Prison Mathematics Project
The Paper: Linear fractional transformations and non-linear leaping convergents of some continued fractions
Article by Marta Cerruti on The Conversation
You can support Numberphile on Patreon like these people
With thanks to MSRI

Jan 13, 2022 • 58min
The Little Star - with Zvezdelina Stankova
Mathematician Zvezdelina Stankova was born in Bulgaria and is now a teaching professor at UC Berkeley.
Zvezda's webpage
Zvezda videos on Numberphile
The Legend of Question Six
Berkeley Math Circle
This episode was supported by G-Research, a world-leading quantitative finance research firm, hiring the brightest minds to tackle the biggest questions in finance - learn more at gresearch.co.uk/numberphile/
You can support Numberphile on Patreon like these people
With thanks to MSRI

Dec 2, 2021 • 37min
Google's 'DeepMind' does Mathematics
A breakthrough paper is published about using artificial intelligence to do mathematics - we discuss it with DeepMind's Alex Davies and Professor Marcus du Sautoy.
DeepMind
DeepMind blog on this topic
Nature article on the topic
Article from The Conversation by Geordie Williamson, who worked on the project
Marcus du Sautoy
The Creativity Code - book on Amazon
Collaborator Geordie Williamson
Collaborator Marc Lackenby
Collaborator Andras Juhasz
This episode was supported by G-Research, a world-leading quantitative finance research firm, hiring the brightest minds to tackle the biggest questions in finance - learn more at gresearch.co.uk/numberphile/
You can support Numberphile on Patreon like these people
With thanks to MSRI

Aug 28, 2021 • 54min
Making Sense of Infinity - with Asaf Karagila
From high school drop-out to set theorist, Asaf Karagila shares his journey towards infinity.
Asaf is a UKRI Future Leaders Fellow at the University of East Anglia.
Asaf's blog
Asaf's Twitter
Some Infinity stuff on Numberphile
You can support Numberphile on Patreon like these people
With thanks to MSRI
This episode was also made possible by the UKRI Future Leaders Fellowship
UKRI Future Leaders Fellowship MR/T021705/1
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