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Message boards : General discussion : Great Internet Mersenne Prime Search New Prime?

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Carlos Pinho
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Posts: 87
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Credit: 89,926,091
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PPS Sieve Emerald: Earned 50,000,000 credits (89,820,295)PSA Silver: Earned 100,000 credits (101,642)
Message 91059 - Posted: 9 Jan 2016 | 22:09:33 UTC

Great Internet Mersenne Prime Search New Prime!?
Take a look at:

http://www.mersenneforum.org/showthread.php?t=20830
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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (16,613,870)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (210,142)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (4,228,147)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 91099 - Posted: 10 Jan 2016 | 21:26:49 UTC

Those people do a great job finding an enormous new prime, and then they fail to notice their result! In 2009 with 2^42643801 - 1, and now again with this new one. How hard can it be?

Has PrimeGrid ever overlooked some great finds in a similar fashion?

/JeppeSN

Profile Michael GoetzProject donor
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,642,050)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,037,630)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 91104 - Posted: 11 Jan 2016 | 1:54:24 UTC - in response to Message 91099.

Those people do a great job finding an enormous new prime, and then they fail to notice their result! In 2009 with 2^42643801 - 1, and now again with this new one. How hard can it be?

Has PrimeGrid ever overlooked some great finds in a similar fashion?

/JeppeSN


Prime, no. But a Fermat divisor did fall through the cracks once and it was a few months before we noticed the mistake.

Of course, we find a LOT of primes, so we have all sorts of tools that automate the various tasks. If it was something that only happened every couple of years, it would be a lot easier to not notice. That's why you build the sirens and the flashing lights. If the automatic alarms malfunction, it's easy to understand how it could go unnoticed. I believe that's what happened with this Mersenne prime.

____________
My lucky number is 75898524288+1

Profile sergeProject donor
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Discovered 3 mega primesEliminated 2 conjecture "k"s321 LLR Turquoise: Earned 5,000,000 credits (5,342,838)Cullen LLR Silver: Earned 100,000 credits (158,983)ESP LLR Gold: Earned 500,000 credits (505,527)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,268,642)PPS LLR Emerald: Earned 50,000,000 credits (60,037,348)PSP LLR Silver: Earned 100,000 credits (120,541)SoB LLR Amethyst: Earned 1,000,000 credits (1,280,028)SR5 LLR Ruby: Earned 2,000,000 credits (2,649,390)SGS LLR Gold: Earned 500,000 credits (518,356)TRP LLR Silver: Earned 100,000 credits (141,131)Woodall LLR Silver: Earned 100,000 credits (116,405)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (235,088)PPS Sieve Amethyst: Earned 1,000,000 credits (1,031,526)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (500,445)TRP Sieve (suspended) Gold: Earned 500,000 credits (507,938)AP 26/27 Turquoise: Earned 5,000,000 credits (5,078,008)GFN Double Silver: Earned 200,000,000 credits (204,033,363)WW Ruby: Earned 2,000,000 credits (2,004,000)PSA Silver: Earned 100,000 credits (291,533)
Message 91127 - Posted: 12 Jan 2016 | 2:51:38 UTC

Heads up:
sometime next week, one of the two things will need to be tweaked on the main web page -

    ▪ either the red ">1<" will have to be changed to "2",
    ▪ or b should be significantly upped (with the skipped b values set aside for another time or another queue).

Profile Michael GoetzProject donor
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,642,050)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,037,630)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 91128 - Posted: 12 Jan 2016 | 3:21:59 UTC - in response to Message 91127.

Heads up:
sometime next week, one of the two things will need to be tweaked on the main web page -
    ▪ either the red ">1<" will have to be changed to "2",
    ▪ or b should be significantly upped (with the skipped b values set aside for another time or another queue).



The first one will be automatic, if appropriate. The numbers are derived in real time (almost) from the T5K list.

As for the second part, that can wait until we know what the details are.

It sounds like you're saying that you know what the number is and that it's in excess of 20 million digits. That's something to celebrate, for sure.
____________
My lucky number is 75898524288+1

Profile sergeProject donor
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Joined: 21 Jun 12
Posts: 112
ID: 144858
Credit: 286,821,089
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Discovered 3 mega primesEliminated 2 conjecture "k"s321 LLR Turquoise: Earned 5,000,000 credits (5,342,838)Cullen LLR Silver: Earned 100,000 credits (158,983)ESP LLR Gold: Earned 500,000 credits (505,527)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,268,642)PPS LLR Emerald: Earned 50,000,000 credits (60,037,348)PSP LLR Silver: Earned 100,000 credits (120,541)SoB LLR Amethyst: Earned 1,000,000 credits (1,280,028)SR5 LLR Ruby: Earned 2,000,000 credits (2,649,390)SGS LLR Gold: Earned 500,000 credits (518,356)TRP LLR Silver: Earned 100,000 credits (141,131)Woodall LLR Silver: Earned 100,000 credits (116,405)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (235,088)PPS Sieve Amethyst: Earned 1,000,000 credits (1,031,526)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (500,445)TRP Sieve (suspended) Gold: Earned 500,000 credits (507,938)AP 26/27 Turquoise: Earned 5,000,000 credits (5,078,008)GFN Double Silver: Earned 200,000,000 credits (204,033,363)WW Ruby: Earned 2,000,000 credits (2,004,000)PSA Silver: Earned 100,000 credits (291,533)
Message 91131 - Posted: 12 Jan 2016 | 3:39:01 UTC
Last modified: 12 Jan 2016 | 3:50:00 UTC

I think the second thing will be the way to go. Neither the speed nor the chances will change (not significantly anyway). The goal of WR is (and always has been, in my opinion) a respectable one.

In fact, I'd encourage to re-review and implement the Cyclo N=22 sieving and an exactly equivalent queue, in parallel. The runtimes will be the same as for an equally sized GFN; the chances of a Cyclo WR are in fact just a bit higher per unit of time! (Because they have less allowable prime factors while sieving and can be sieved higher using the same time.)

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Joined: 5 Apr 14
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Credit: 41,455,105
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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (16,613,870)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (210,142)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (4,228,147)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 91136 - Posted: 12 Jan 2016 | 14:02:16 UTC - in response to Message 91127.

Also remember what I once said in a post elsewhere (talking about the GFN search here at PrimeGrid):

It is not unlikely that GIMPS's next find will be so big that people here at PrimeGrid will demand n=23 opened...


/JeppeSN

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Discovered 1 mega primeEliminated 1 conjecture "k"Found 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,163,876)Cullen LLR Ruby: Earned 2,000,000 credits (2,046,238)ESP LLR Jade: Earned 10,000,000 credits (10,810,673)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,325,450)PPS LLR Emerald: Earned 50,000,000 credits (51,350,512)PSP LLR Ruby: Earned 2,000,000 credits (2,057,883)SoB LLR Ruby: Earned 2,000,000 credits (2,210,880)SR5 LLR Sapphire: Earned 20,000,000 credits (27,144,817)SGS LLR Sapphire: Earned 20,000,000 credits (37,535,315)TRP LLR Jade: Earned 10,000,000 credits (15,379,675)Woodall LLR Amethyst: Earned 1,000,000 credits (1,038,490)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,197,758)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (202,834)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,021,104)PPS Sieve Double Silver: Earned 200,000,000 credits (319,204,600)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,032,063)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,343,795)AP 26/27 Jade: Earned 10,000,000 credits (10,109,979)GFN Sapphire: Earned 20,000,000 credits (39,214,892)WW Emerald: Earned 50,000,000 credits (58,136,000)PSA Turquoise: Earned 5,000,000 credits (6,030,023)
Message 91358 - Posted: 19 Jan 2016 | 14:24:40 UTC

The new world record prime ist now official:

http://www.mersenne.org/primes/?press=M74207281
____________
My lucky number: 65531*2^3629342-1 (TRP)

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (16,613,870)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (210,142)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (4,228,147)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 91359 - Posted: 19 Jan 2016 | 14:27:52 UTC - in response to Message 91136.
Last modified: 19 Jan 2016 | 14:28:12 UTC

I started a thread New 2016 world-record prime in the Generalized Fermat Prime Search forum on the new b value(s) needed to set a world record by GFN. /JeppeSN

Kelly DaviesProject donor
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321 LLR Ruby: Earned 2,000,000 credits (2,050,518)Cullen LLR Ruby: Earned 2,000,000 credits (2,282,176)ESP LLR Ruby: Earned 2,000,000 credits (3,106,610)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,142,891)PPS LLR Turquoise: Earned 5,000,000 credits (5,014,094)PSP LLR Ruby: Earned 2,000,000 credits (3,475,366)SoB LLR Double Bronze: Earned 100,000,000 credits (180,081,042)SR5 LLR Ruby: Earned 2,000,000 credits (3,027,344)SGS LLR Turquoise: Earned 5,000,000 credits (5,042,519)TRP LLR Ruby: Earned 2,000,000 credits (2,010,534)Woodall LLR Ruby: Earned 2,000,000 credits (2,077,196)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,483,203)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,991,973)PPS Sieve Double Turquoise: Earned 5,000,000,000 credits (6,003,339,738)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (24,236,704)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,007,588)AP 26/27 Jade: Earned 10,000,000 credits (10,058,984)GFN Jade: Earned 10,000,000 credits (15,782,029)PSA Gold: Earned 500,000 credits (525,865)
Message 91405 - Posted: 20 Jan 2016 | 17:11:47 UTC
Last modified: 20 Jan 2016 | 17:17:06 UTC

Provisionally M49. Same dude also found Provisional M48 a couple years ago.

AND found M43 a month ago. (and M44 in 2006)
____________
My Lucky Number is 1893*2^1283297+1

axn
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Credit: 28,027,106
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321 LLR Gold: Earned 500,000 credits (656,177)Cullen LLR Silver: Earned 100,000 credits (457,297)ESP LLR Silver: Earned 100,000 credits (437,502)PPS LLR Amethyst: Earned 1,000,000 credits (1,256,334)SoB LLR Amethyst: Earned 1,000,000 credits (1,246,109)SR5 LLR Ruby: Earned 2,000,000 credits (2,193,129)SGS LLR Silver: Earned 100,000 credits (101,658)Woodall LLR Silver: Earned 100,000 credits (292,129)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (32,498)PPS Sieve Jade: Earned 10,000,000 credits (15,515,229)AP 26/27 Amethyst: Earned 1,000,000 credits (1,491,867)GFN Ruby: Earned 2,000,000 credits (4,245,870)PSA Silver: Earned 100,000 credits (101,309)
Message 91407 - Posted: 20 Jan 2016 | 17:19:33 UTC - in response to Message 91405.

Provisionally M49. Same dude also found Provisional M48 a couple years ago.

AND found M43 a month ago. (and M44 in 2006)

M43 was found a month and a decade ago ;-)

Kelly DaviesProject donor
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Joined: 4 Apr 10
Posts: 107
ID: 58144
Credit: 6,305,744,229
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321 LLR Ruby: Earned 2,000,000 credits (2,050,518)Cullen LLR Ruby: Earned 2,000,000 credits (2,282,176)ESP LLR Ruby: Earned 2,000,000 credits (3,106,610)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,142,891)PPS LLR Turquoise: Earned 5,000,000 credits (5,014,094)PSP LLR Ruby: Earned 2,000,000 credits (3,475,366)SoB LLR Double Bronze: Earned 100,000,000 credits (180,081,042)SR5 LLR Ruby: Earned 2,000,000 credits (3,027,344)SGS LLR Turquoise: Earned 5,000,000 credits (5,042,519)TRP LLR Ruby: Earned 2,000,000 credits (2,010,534)Woodall LLR Ruby: Earned 2,000,000 credits (2,077,196)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,483,203)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (28,991,973)PPS Sieve Double Turquoise: Earned 5,000,000,000 credits (6,003,339,738)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (24,236,704)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,007,588)AP 26/27 Jade: Earned 10,000,000 credits (10,058,984)GFN Jade: Earned 10,000,000 credits (15,782,029)PSA Gold: Earned 500,000 credits (525,865)
Message 91409 - Posted: 20 Jan 2016 | 18:00:43 UTC - in response to Message 91407.

right. keep forgetting which decade we are in.
____________
My Lucky Number is 1893*2^1283297+1

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