How they found the World's Biggest Prime Number - Numberphile

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Published 2016-01-21
Featuring Matt Parker...
More links & stuff in full description below ↓↓↓

See part one at:    • New World's Biggest Prime Number (PRI...  
Part three on Numberphile2:    • More details about the World's Bigges...  

Matt's interview with Curtis Cooper:    • New World-Record Largest Prime Ever F...  
The previous record:    • New Largest Known Prime Number - Numb...  
Mersenne Numbers and Mersenne Primes:    • 31 and Mersenne Primes - Numberphile  
More on Mersenne Primes:    • Perfect Numbers and Mersenne Primes -...  
GIMPS: www.mersenne.org/
Prime Playlist: bit.ly/primevids

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All Comments (21)
  • Finding the 2^127-1 Lucas number... by hand. Imagine messing up just one freaking number.
  • @vinnyoh4274
    Matt: ... I know 5 is a prime number. Brady: What?? Matt: Probably..... What a classic Parker Square moment.
  • @NomTom
    instead of searching for the biggest prime number, I went searching for the smallest. After two years of calculating, my computer finally found it: 2
  • @Azide_zx
    fun fact, Prime95, which is the prime finder tool made by GIMPS, is also used as a stress test for CPUs for overclocking
  • @knighty0220
    If you'd figure out a pattern, would you get more money for publishing a prime every month or for publishing the pattern?
  • this is beyond my imagination how they come up with say something like lucas series and check if a number is prime or not from that series... props to the legends like these..
  • @Fish-ec8nq
    4:05 He fast forwarded those numbers because he started by saying “2 billion”, not “2 quintillion. Ripparoni
  • @12tone
    Any chance we'll get an explanation of why that method works?
  • @neurospizz75
    if I'm at a restaurant and order a cut of meat, can I use this formula to see if the ribs are prime?
  • @clowen00
    This cant be true! The Google Calculator says this number is Infinity!
  • @TehDragonGuy
    You should mass produce those books. I would legitimately buy them.
  • @zioscozio
    Could somebody write this prime in base 26 and print it using English alphabet? Would it reveal interesting words? What would be the longest?
  • @SaraSchenstrom
    The fact that people are so nerdy they do this, and then print it out like it was a book, it makes me ridiculously happy. And btw, thank you guys for making videos! I haven't done very advanced math, but through your videos I have been able to at least kind of grasp the idea of some of these amazing things!
  • @MoosesValley
    Excellent video. So engaging, so informing, so entertaining ! The faces Matt pulls are so funny. In fact, I would put them in the "Flippin' hilarious !" category. And him printing the out the largest prime on 745 pages of paper (double sided) is just such a Matt thing to do. And it is not a waste of paper, he will take these volumes to talks, lectures, meetings, and people will look at them and wonder ... On a quiet Sunday afternoon, he will probably put his favorite math's journal aside and flick through these volumes and smile. (Don't worry, I would as well).