Brilliant

Matt Parker explains there's a new title-holder for the largest known reversible prime (or Emirp). Learn for free on Brilliant (and get 20% off a premium subscription) at https://brilliant.org/numberphile (episode sponsor) -- More links & stuff in full description below ↓↓↓ Full interview with Stephan Schöler (who discovered the number) - https://youtu.be/Rd8moV7jVX0 Patrons can watch a timelapse of Brady filming Matt for this video - https://www.patreon.com/posts/150828843 More Matt on Numberphile - https://www.youtube.com/playlist?list=PLt5AfwLFPxWKuRpivZd_ivR2EvEzKrDUu MATT PARKER LINKS Website - https://standupmaths.com/ Live shows - https://standupmaths.com/shows/ Books - https://mathsgear.co.uk/collections/books Books on Amazon - https://amzn.to/4rK4j3C Penguin UK: https://www.penguin.co.uk/authors/77633/matt-parker Penguin Random House US: https://www.penguinrandomhouse.com/authors/2198716/matt-parker/ YouTube channel (standupmaths) - https://www.youtube.com/user/standupmaths Prime number playlist: https://www.youtube.com/playlist?list=PL0D0BD149128BB06F Patreon: http://www.patreon.com/numberphile Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet We are also grateful for support from the Ben Delo Foundation - https://delo.org/ NUMBERPHILE Website: http://www.numberphile.com/ Video by Brady Haran and Pete McPartlan Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9