Uploaded June 2022 | Updated September 2026, 2 weeks ago

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Check out Emma's blog post about the calculation:
cloud.google.com/blog/products/compute/calculating-100-trillion-digits-of-pi-on-google-cloud

Register for Emma's live seminar! It's on at 19:00 BST and different time zones are different.
cloudonair.withgoogle.com/events/pi-time

Emma Haruka Iwao's records:
2019: 31,415,926,535,897 digits of π
2022: 100,000,000,000,000 digits of π

Chudnovsky algorithm
en.wikipedia.org/wiki/Chudnovsky_algorithm

And here is me Chudnovskying by hand: youtube.com/watch?v=LhlqCJjbEa0

Bailey–Borwein–Plouffe formula
en.wikipedia.org/wiki/Bailey%E2%80%93Borwein%E2%80%93Plouffe_formula

y-cruncher - A Multi-Threaded Pi-Program
numberworld.org/y-cruncher

Cheers to all of my Patreon supporters who mean I can jump on the ol' video machine whenever there is breaking maths news. You can also help support my videos. patreon.com/standupmaths

CORRECTIONS:
- At 07:34 I say that the first column are the hex locations. They are not. Those are the base-10 locations in scientific notation. Sorry!
- A few people noticed that at 02:20 I say 128 when I mean 158. The on-screen number is correct.
- Let me know if you spot any other mistakes

Filming and editing by Alex Genn-Bash
Additional footage by Emma Haruka Iwao
Blah blah blah by Matt
Music by Howard Carter
Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician
Website: standupmaths.com
US book: penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker
UK book: mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback