Results 1 to 11 of 11

Thread: Haswell Core i5 user discovers largest prime number ever

  1. #1
    HEXUS.admin
    Join Date
    Apr 2005
    Posts
    28,104
    Thanks
    0
    Thanked
    1,844 times in 627 posts

    Haswell Core i5 user discovers largest prime number ever

    This Mersenne prime number, dubbed M82589933, is nearly 25 million digits in length.
    Read more.

  2. #2
    Senior Member
    Join Date
    Dec 2013
    Posts
    2,731
    Thanks
    348
    Thanked
    339 times in 237 posts

    Re: Haswell Core i5 user discovers largest prime number ever

    Now we just need to workout what to do with it.

  3. Received thanks from:

    Strawb77 (05-01-2019)

  4. #3
    Hooning about Hoonigan's Avatar
    Join Date
    Sep 2011
    Posts
    1,896
    Thanks
    132
    Thanked
    340 times in 234 posts
    • Hoonigan's system
      • Motherboard:
      • MSI Z270 Gaming M7
      • CPU:
      • Intel Core i7 7700k @ 5.0GHz
      • Memory:
      • 32GB Corsair Dominator Platinum RGB @ 3466MHz - CAS14
      • Storage:
      • 1TB Samsung 970 EVO NVMe + 1TB Corsair MP510 NVMe
      • Graphics card(s):
      • MSI NVIDIA GeForce RTX 2080Ti VENTUS OC
      • PSU:
      • be quiet! Straight Power 11 650W
      • Case:
      • be quiet! Dark Base Pro 900
      • Operating System:
      • Windows 10 x64
      • Monitor(s):
      • Acer Predator Z35P + ASUS ROG PG279Q
      • Internet:
      • Virgin Media Vivid 350

    Re: Haswell Core i5 user discovers largest prime number ever

    That's my thinking as well Corky. It's all well and good finding these prime numbers, but why do we need to know what they are?

  5. #4
    Senior Member
    Join Date
    May 2014
    Posts
    1,065
    Thanks
    68
    Thanked
    143 times in 96 posts

    Re: Haswell Core i5 user discovers largest prime number ever

    I think you should have copy pasted the whole number into the article in a pop out quote if people want to see it

  6. Received thanks from:

    Strawb77 (05-01-2019)

  7. #5
    Senior Member
    Join Date
    Jul 2004
    Location
    London
    Posts
    2,455
    Thanks
    100
    Thanked
    74 times in 50 posts
    • Mblaster's system
      • Motherboard:
      • ASUS PK5 Premium
      • CPU:
      • Intel i5 2500K
      • Memory:
      • 8gb DDR3
      • Storage:
      • Intel X25 SSD + WD 2TB HDD
      • Graphics card(s):
      • Nvidia GeForce GTX 570
      • PSU:
      • Corsair HX520
      • Case:
      • Antec P180
      • Operating System:
      • Windows 7 Professional x64
      • Monitor(s):
      • HP w2207 (22" wide)
      • Internet:
      • Rubbish ADSL

    Re: Haswell Core i5 user discovers largest prime number ever

    Quote Originally Posted by Tabbykatze View Post
    I think you should have copy pasted the whole number into the article in a pop out quote if people want to see it
    That might slow down the page load time a bit, just a pure text file of that number would be around 24MB

  8. #6
    Senior Member
    Join Date
    May 2014
    Posts
    1,065
    Thanks
    68
    Thanked
    143 times in 96 posts

    Re: Haswell Core i5 user discovers largest prime number ever

    Quote Originally Posted by Mblaster View Post
    That might slow down the page load time a bit, just a pure text file of that number would be around 24MB


    I want to break browsers!

  9. Received thanks from:

    Pleiades (05-01-2019),Strawb77 (05-01-2019)

  10. #7
    Registered User
    Join Date
    Jan 2019
    Posts
    3
    Thanks
    0
    Thanked
    0 times in 0 posts

    Re: Haswell Core i5 user discovers largest prime number ever

    nice

  11. #8
    Evil Monkey! MrJim's Avatar
    Join Date
    Aug 2012
    Location
    London
    Posts
    1,794
    Thanks
    150
    Thanked
    292 times in 222 posts
    • MrJim's system
      • Motherboard:
      • Asus P8Z77-V
      • CPU:
      • Intel 3570K 'Ivybridge'
      • Memory:
      • 8GB Corsair Vengence LP
      • Storage:
      • Samsung 830 256GB SSD 1TB Samsung 850 Evo SSD, 2 x 2TB Seagate HDD
      • Graphics card(s):
      • Zotac GTX 1070 Amp 8GB
      • PSU:
      • Seasonic X-660
      • Case:
      • Silverstone FT-02 Black
      • Operating System:
      • Windows 8.1 Pro
      • Monitor(s):
      • Viewsonic 27" XG2703-GS
      • Internet:
      • 72mb/s fibre

    Re: Haswell Core i5 user discovers largest prime number ever

    Quote Originally Posted by Corky34 View Post
    Now we just need to workout what to do with it.
    Large prime numbers are very useful for encryption, amongst other things:

    https://www.abc.net.au/news/science/...-works/9338876

  12. #9
    Senior Member
    Join Date
    Dec 2013
    Posts
    2,731
    Thanks
    348
    Thanked
    339 times in 237 posts

    Re: Haswell Core i5 user discovers largest prime number ever

    True, but this is a Mersenne prime number, not that I'm clever enough to know, or even understand, the difference between the two.

    And before anyone tries explaining it to me, i read the explanation in the article but it made about much sense to me as when i tried to understand quantum physics so it's probably best to just accept that it's beyond my comprehension.

  13. Received thanks from:

    Pleiades (05-01-2019)

  14. #10
    root Member DanceswithUnix's Avatar
    Join Date
    Jan 2006
    Location
    In the middle of a core dump
    Posts
    9,576
    Thanks
    467
    Thanked
    979 times in 833 posts
    • DanceswithUnix's system
      • Motherboard:
      • Asus X470-PRO
      • CPU:
      • 2600X
      • Memory:
      • 16GB 3200MHz
      • Storage:
      • 1TB Linux, 1TB Games (Win 10)
      • Graphics card(s):
      • Asus Strix RX Vega 56
      • PSU:
      • 650W Corsair TX
      • Case:
      • Antec 300
      • Operating System:
      • Fedora 28 + Win 10 Pro 64 (yuk)
      • Monitor(s):
      • Benq XL2730Z 1440p + Samsung 2343BW 2048x1152
      • Internet:
      • Zen 80Mb/20Mb VDSL

    Re: Haswell Core i5 user discovers largest prime number ever

    Quote Originally Posted by MrJim View Post
    Large prime numbers are very useful for encryption, amongst other things:

    https://www.abc.net.au/news/science/...-works/9338876
    For prime numbers to work with encryption they have to be secret, not plastered on a Wikipedia page

    Actually that isn't quite true, public keys use simple known primes but choose numbers that in binary have as few '1' bits as possible. That makes Mersenne primes worst case, for each set bit you need to perform an operation. You usually use 2^16+1 as a public prime.

  15. #11
    Member
    Join Date
    Jul 2008
    Location
    Surrey
    Posts
    145
    Thanks
    15
    Thanked
    5 times in 5 posts
    • Crevan's system
      • Motherboard:
      • Asus P5Q Pro
      • CPU:
      • Q6600
      • Memory:
      • 4GB OCZ Platinum Rev.2 800MHz
      • Graphics card(s):
      • Gigabyte GTX460
      • PSU:
      • Corsair HX 520W
      • Case:
      • Hiper Osiris
      • Operating System:
      • Windows 7 Professional 64bit
      • Monitor(s):
      • Samsung 223BW 21.6''
      • Internet:
      • VM 30Mbps

    Re: Haswell Core i5 user discovers largest prime number ever

    the prime number is one less than another number to the power of two
    Wrong wording here, Mike. "X to the power of two" is X^2. Mersenne numbers are (2^X)-1. You'd have to say "the prime number is one less than two to the power of another number".

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •