PrimeGrid
Please visit donation page to help the project cover running costs for this month

Sponsored by:

Hosted at and sponsored by Rackspace.

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : News : 27 Mega Prime!

Author Message
Van ZimmermanProject donor
Volunteer moderator
Project administrator
Volunteer tester
Project scientist
Send message
Joined: 30 Aug 12
Posts: 1923
ID: 168418
Credit: 5,232,081,397
RAC: 4,669,365
Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,163,640)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,037,992)PPS LLR Sapphire: Earned 20,000,000 credits (20,999,495)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (21,208,789)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,211,696)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,360,148)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (51,669,540)GFN Double Ruby: Earned 2,000,000,000 credits (3,671,409,282)PSA Double Bronze: Earned 100,000,000 credits (192,254,621)
Message 121286 - Posted: 22 Oct 2018 | 10:23:16 UTC

On 11 October 2018, 22:54:34, PrimeGrid’s 27121 Prime Search, through PRPNet and in collaboration with the 12121 Search (k=27 sister project), has found the mega prime:

27*2^7046834+1

The prime is 2,121,310 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 48th overall.

The discovery was made by Andrew M. Farrow (Nortech) of Australia using an Intel(R) Xeon(R) CPU E3-1245 v6 @ 3.70GHz Processor with 16GB RAM, running Linux. This computer took about 1 hour 13 minutes to complete the primality test using LLR.

For more details, please see the official announcement.

numbermaniac
Send message
Joined: 28 Mar 14
Posts: 92
ID: 305955
Credit: 3,170,025
RAC: 2,220
321 LLR Bronze: Earned 10,000 credits (17,273)PPS LLR Silver: Earned 100,000 credits (370,042)SR5 LLR Silver: Earned 100,000 credits (105,157)SGS LLR Silver: Earned 100,000 credits (100,862)TRP LLR Silver: Earned 100,000 credits (105,612)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (211,357)PPS Sieve Amethyst: Earned 1,000,000 credits (1,577,628)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (34,269)TRP Sieve (suspended) Bronze: Earned 10,000 credits (32,679)AP 26/27 Silver: Earned 100,000 credits (113,204)GFN Silver: Earned 100,000 credits (366,072)PSA Silver: Earned 100,000 credits (127,825)
Message 121323 - Posted: 23 Oct 2018 | 8:01:45 UTC
Last modified: 23 Oct 2018 | 8:03:46 UTC

In the PDF it says

Entry in “The Largest Know Primes Database” can be found here:


I think it should be "Known" rather than "Know".

Also there's a completely blank 3rd page in it 😄
____________
6603*2^1411654+1 — 424955 digit PPSE (DC)

Van ZimmermanProject donor
Volunteer moderator
Project administrator
Volunteer tester
Project scientist
Send message
Joined: 30 Aug 12
Posts: 1923
ID: 168418
Credit: 5,232,081,397
RAC: 4,669,365
Discovered the World's First GFN-20 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,089,185)Cullen LLR Sapphire: Earned 20,000,000 credits (21,163,640)ESP LLR Sapphire: Earned 20,000,000 credits (20,089,407)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,037,992)PPS LLR Sapphire: Earned 20,000,000 credits (20,999,495)PSP LLR Sapphire: Earned 20,000,000 credits (20,117,197)SoB LLR Sapphire: Earned 20,000,000 credits (21,208,789)SR5 LLR Sapphire: Earned 20,000,000 credits (20,278,667)SGS LLR Sapphire: Earned 20,000,000 credits (20,055,153)TRP LLR Sapphire: Earned 20,000,000 credits (20,619,871)Woodall LLR Sapphire: Earned 20,000,000 credits (20,211,696)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,360,148)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,051,222,753)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,189,695)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,102,079)AP 26/27 Emerald: Earned 50,000,000 credits (51,669,540)GFN Double Ruby: Earned 2,000,000,000 credits (3,671,409,282)PSA Double Bronze: Earned 100,000,000 credits (192,254,621)
Message 121339 - Posted: 23 Oct 2018 | 19:14:30 UTC - in response to Message 121323.
Last modified: 23 Oct 2018 | 19:20:01 UTC

In the PDF it says

Entry in “The Largest Know Primes Database” can be found here:


I think it should be "Known" rather than "Know".

Also there's a completely blank 3rd page in it 😄


Should be all fixed. Many thanks for the catch.

Post to thread

Message boards : News : 27 Mega Prime!

[Return to PrimeGrid main page]
Copyright © 2005 - 2018 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 1.63, 1.63, 1.29
Generated 13 Nov 2018 | 4:17:04 UTC