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Message boards : Sierpinski/Riesel Base 5 Problem : Welcome to the Sierpinski / Riesel Base 5 Project

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Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 9366
ID: 53948
Credit: 101,656,132
RAC: 22,182
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,253,156)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (5,984,384)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,009,313)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)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 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (38,036,953)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 66386 - Posted: 5 Jun 2013 | 22:21:57 UTC
Last modified: 29 Aug 2017 | 14:15:50 UTC

Welcome to the Sierpinski/Riesel Base 5 Project

This project is an extension of the original Sierpinski/Riesel problems (SoB/TRP). It is attempting to solve the Sierpinski/Riesel problems for base 5 by determining the smallest Sierpinski/Riesel numbers. Therefore, primes of the form k*5^n+/-1 are being sought for even k's.

A distributed effort is currently ongoing in support of the project. More information can be found in the mersenneforum.org Sierpinski/Riesel Base 5 thread.
Best of Luck!!!

    Sierpinski Base 5 - The smallest even Sierpinski base 5 number is suggested to be k=159986. To prove this, it is sufficient to show that k*5^n+1 is prime for each even k < 159986. This has currently been achieved for all even k, with the exception of the following 33 values (as of 15 March 2016):
      k = 6436, 7528, 10918, 26798, 29914, 31712, 36412, 41738, 44348, 44738, 45748, 51208, 58642, 60394, 62698, 64258, 67612, 67748, 71492, 74632, 76724, 81556, 83936, 84284, 90056, 92906, 93484, 105464, 118568, 126134, 138514, 139196, 152588

    Riesel Base 5 - The smallest even Riesel base 5 number is suggested to be k=346802. To prove this, it is sufficient to show that k*5^n-1 is prime for each even k < 346802. This has currently been achieved for all even k, with the exception of the following 73 values (as of 25 August 2017):

      k = 3622, 4906, 23906, 26222, 35248, 35816, 52922, 63838, 64598, 66916, 68132, 71146, 76354, 81134, 88444, 92936, 102818, 102952, 109238, 109838, 109862, 127174, 131848, 134266, 136804, 143632, 145462, 145484, 146264, 146756, 147844, 151042, 152428, 154844, 159388, 164852, 170386, 170908, 177742, 182398, 187916, 189766, 190334, 194368, 195872, 201778, 204394, 206894, 207494, 213988, 231674, 238694, 239062, 239342, 246238, 248546, 259072, 265702, 267298, 271162, 273662, 285598, 285728, 298442, 301562, 304004, 313126, 318278, 322498, 325922, 327926, 335414, 338866

    History
    Robert Smith originally presented the idea of a Sierpinski/Riesel base 5 search on 17 September 2004, in the primeform yahoo group. Using {3,7,13,31,601} as the covering set, he proposed that k=346802 is the smallest Riesel base 5 number. Shortly afterwards, Guido Smetrijns proposed that k=159986 is the smallest Sierpinski base 5 number.

    After doing most of the initial work himself, Robert posted in the mersenneforum.org on 28 September 2004, and thus, the distributed effort began. Other principle players in the development, management, and growth of the project are Lars Dausch, Geoff Reynolds, Anand S Nair, and Thomas Masser.


Primes found by PrimeGrid

171362*5^2400996-1 found by Frank Schwegler on 25 August 2017 | Official Announcement
180062*5^2249192-1 found by Stefan Larsson on 20 August 2016 | Official Announcement
53546*5^2216664-1 found by Tom Greer on 30 May 2016 | Official Announcement
296024*5^2185270-1 found by Steven Wong on 25 March 2016 | Official Announcement
92158*5^2145024+1 found by Karl Burridge on 15 March 2016 | Official Announcement
77072*5^2139921+1 found by Wolfgang Becker on 6 March 2016 | Official Announcement
306398*5^2112410-1 found by André Ahlfors Dahl on 11 January 2016 | Official Announcement
154222*5^2091432+1 found by Scott Brown on 10 November 2015 | Official Announcement
100186*5^2079747-1 found by Toshitaka Kumagai on 21 October 2015 | Official Announcement
144052*5^2018290+1 found by Wolfgang Schmidt on 23 May 2015 | Official Announcement
109208*5^1816285+1 found by Scott Brown on 18 October 2014 | Official Announcement
325918*5^1803339-1 found by Jörg Meili on 21 September 2014 | Official Announcement
133778*5^1785689+1 found by Guo Hua Miao on 17 August 2014 | Official Announcement
24032*5^1768249+1 found by Hiroyuki Okazaki on 23 July 2014 | Official Announcement
138172*5^1714207-1 found by Walter Darimont on 27 June 2014 | Official Announcement
22478*5^1675150-1 found by Guo Hua Miao on 19 June 2014 | Official Announcement
326834*5^1634978-1 found by Scott Brown on 25 April 2014 | Official Announcement
207394*5^1612573-1 found by Honza Cholt on 9 April 2014 | Official Announcement
104944*5^1610735-1 found by Brian Smith on 9 April 2014 | Official Announcement
330286*5^1584399-1 found by Scott Brown on 21 March 2014 | Official Announcement
22934*5^1536762-1 found by Keishi Toda on 6 February 2014 | Official Announcement
178658*5^1525224-1 found by Keishi Toda on 31 January 2014 | Official Announcement
59912*5^1500861+1 found by Raymond Ottusch on 17 January 2014 | Official Announcement
37292*5^1487989+1 found by Stephen R Cilliers on 29 December 2013 | Official Announcement
173198*5^1457792-1 found by Motohiro Ohno on 4 December 2013 | Official Announcement
245114*5^1424104-1 found by David Yost on 1 November 2013
175124*5^1422646-1 found by David Yost on 31 October 2013
256612*5^1335485-1 found by Wolfgang Schwieger on 4 August 2013
268514*5^1292240-1 found by Raymond Schouten on 16 July 2013
243944*5^1258576-1 found by Tod Slakans on 5 July 2013
97366*5^1259955-1 found by Jörg Meili on 4 July 2013
84466*5^1215373-1 found by Raymond Schouten on 29 June 2013
150344*5^1205508-1 found by Randy Ready on 28 June 2013
1396*5^1146713-1 found by Randy Ready on 23 June 2013
17152*5^1131205-1 found by Bob Benson on 22 June 2013
92182*5^1135262+1 found by Randy Ready on 21 June 2013
329584*5^1122935-1 found by Stephen R Cilliers on 21 June 2013
305716*5^1093095-1 found by Randy Ready on 18 June 2013
130484*5^1080012-1 found by Randy Ready on 17 June 2013
97768*5^987383-1 found by Ulrich Hartel on 17 June 2013
55154*5^1063213+1 found by Senji Yamashita on 16 June 2013
243686*5^1036954-1 found by Katsumi Hirai on 16 June 2013
70082*5^936972-1 found by Scott Brown on 30 May 2013
102976*5^929801-1 found by David Yost on 9 May 2013
110488*5^917100+1 found by Ronny Willig on 25 March 2013
162434*5^856004-1 found by Predrag Kurtovic on 10 January 2013
174344*5^855138-1 found by Ronny Willig on 9 January 2013
57406*5^844253-1 found by David Yost on 7 November 2012
48764*5^831946-1 found by David Yost on 12 October 2012
162668*5^785748-1 found by Lennart Vogel on 3 July 2012
289184*5^770116-1 found by David Yost on 7 June 2012
11812*5^769343-1 found by Göran Schmidt on 2 June 2012
316594*5^766005-1 found by Michael Becker on 30 May 2012
340168*5^753789-1 found by Kimmo Myllyvirta on 18 May 2012
338948*5^743996-1 found by Ricky L Hubbard on 7 May 2012
18656*5^735326-1 found by Lennart Vogel on 3 May 2012
5374*5^723697-1 found by Kelvin Lewis on 13 April 2012
72532*5^708453-1 found by Göran Schmidt on 7 February 2012
2488*5^679769-1 found by Sascha Beat Dinkel on 24 November 2011
331882*5^674961-1 found by Ronny Willig on 11 November 2011
27994*5^645221-1 found by Philipp Bliedung on 18 July 2011
262172*5^643342-1 found by Kimmo Myllyvirta on 13 July 2011
49568*5^640900-1 found by Sascha Beat Dinkel on 1 July 2011
270748*5^614625-1 found by Puzzle Peter on 14 February 2011
266206*5^608649-1 found by Puzzle Peter on 10 February 2011
210092*5^618136-1 found by Puzzle Peter on 31 January 2011
301016*5^586858-1 found by Puzzle Peter on 24 January 2011

Primes found by SR5 since collaboration

109988*5^544269+1 found by ltd on 23 April 2011
68492*5^542553+1 found by ltd on 24 April 2011

Primes found by others

114986*5^1052966-1 found by Sergey Batalov on 3 June 2013
119878*5^1019645-1 found by Sergey Batalov on 3 June 2013

Michael GoetzProject donor
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Project scientist
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Joined: 21 Jan 10
Posts: 9366
ID: 53948
Credit: 101,656,132
RAC: 22,182
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,253,156)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (5,984,384)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,009,313)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)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 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (38,036,953)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 71263 - Posted: 6 Dec 2013 | 17:59:02 UTC

This thread has been updated with the most recent SR5 prime. This is the first SR5 megaprime!
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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321 LLR Turquoise: Earned 5,000,000 credits (5,229,962)Cullen LLR Turquoise: Earned 5,000,000 credits (5,555,687)ESP LLR Turquoise: Earned 5,000,000 credits (5,917,101)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,946,079)PPS LLR Jade: Earned 10,000,000 credits (15,932,892)PSP LLR Turquoise: Earned 5,000,000 credits (6,289,793)SoB LLR Turquoise: Earned 5,000,000 credits (5,275,249)SR5 LLR Turquoise: Earned 5,000,000 credits (8,269,279)SGS LLR Jade: Earned 10,000,000 credits (10,375,075)TRP LLR Turquoise: Earned 5,000,000 credits (5,074,313)Woodall LLR Turquoise: Earned 5,000,000 credits (6,434,041)321 Sieve (suspended) Silver: Earned 100,000 credits (245,924)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,474,263)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (13,772,539)PPS Sieve Double Bronze: Earned 100,000,000 credits (119,444,534)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,557,924)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,896,883)AP 26/27 Jade: Earned 10,000,000 credits (13,596,609)GFN Double Bronze: Earned 100,000,000 credits (106,282,144)PSA Turquoise: Earned 5,000,000 credits (6,367,890)
Message 72473 - Posted: 20 Jan 2014 | 8:31:17 UTC - in response to Message 71263.

This thread has been updated with the most recent SR5 prime. This is the first SR5 megaprime!


Make that the second! - Congrats to Raymond!
____________

Michael GoetzProject donor
Volunteer moderator
Project scientist
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Joined: 21 Jan 10
Posts: 9366
ID: 53948
Credit: 101,656,132
RAC: 22,182
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,253,156)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (5,984,384)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,009,313)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)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 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (38,036,953)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 72478 - Posted: 20 Jan 2014 | 9:24:53 UTC - in response to Message 72473.

This thread has been updated with the most recent SR5 prime. This is the first SR5 megaprime!


Make that the second! - Congrats to Raymond!


Raymond's was the third.
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

Profile Nick Embrey
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Credit: 47,267,558
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321 LLR Gold: Earned 500,000 credits (757,089)Cullen LLR Gold: Earned 500,000 credits (709,213)ESP LLR Silver: Earned 100,000 credits (223,648)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (129,875)PPS LLR Amethyst: Earned 1,000,000 credits (1,035,112)PSP LLR Silver: Earned 100,000 credits (462,607)SoB LLR Gold: Earned 500,000 credits (613,743)SR5 LLR Gold: Earned 500,000 credits (926,964)SGS LLR Silver: Earned 100,000 credits (247,344)TRP LLR Silver: Earned 100,000 credits (323,999)Woodall LLR Silver: Earned 100,000 credits (380,432)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (14,215)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (103,760)PPS Sieve Sapphire: Earned 20,000,000 credits (24,355,475)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,212,148)TRP Sieve (suspended) Gold: Earned 500,000 credits (821,022)AP 26/27 Silver: Earned 100,000 credits (105,118)GFN Amethyst: Earned 1,000,000 credits (1,121,065)PSA Jade: Earned 10,000,000 credits (13,724,730)
Message 78275 - Posted: 23 Jul 2014 | 16:24:37 UTC

Here's a (possibly dumb) question for you guys: Apparently there are some 25,000 SR5 tasks waiting to be turned into WUs. Plus the few thousand in progress. The "Waiting" number has been steadily falling. My question is, when this reaches zero, is that it? Is the SR5 project over? Or will new prime candidates be analyzed in the future beyond what's currently listed?

Sorry, I don't think I'm using the proper terminology but you guys know what I mean.
____________

Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 9366
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Credit: 101,656,132
RAC: 22,182
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,253,156)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (5,984,384)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,009,313)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)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 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (38,036,953)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 78276 - Posted: 23 Jul 2014 | 17:23:51 UTC - in response to Message 78275.

Here's a (possibly dumb) question for you guys: Apparently there are some 25,000 SR5 tasks waiting to be turned into WUs. Plus the few thousand in progress. The "Waiting" number has been steadily falling. My question is, when this reaches zero, is that it? Is the SR5 project over? Or will new prime candidates be analyzed in the future beyond what's currently listed?

Sorry, I don't think I'm using the proper terminology but you guys know what I mean.


More tasks will be loaded long before that number reaches zero. There's a lot more work available to be loaded -- several years worth, at least. We're currently around n=1.76M and we've sieved all the way to n=5M.

When we get close to n=5M, we'll do more sieving in order to create more ongoing tasks. This project, like all of the conjectures, will keep running until a prime is found for all k's (which will prove the conjecture is true.) If the conjecture is false, the project will never end.
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

Profile Nick Embrey
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Joined: 20 Aug 12
Posts: 3
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Credit: 47,267,558
RAC: 0
321 LLR Gold: Earned 500,000 credits (757,089)Cullen LLR Gold: Earned 500,000 credits (709,213)ESP LLR Silver: Earned 100,000 credits (223,648)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (129,875)PPS LLR Amethyst: Earned 1,000,000 credits (1,035,112)PSP LLR Silver: Earned 100,000 credits (462,607)SoB LLR Gold: Earned 500,000 credits (613,743)SR5 LLR Gold: Earned 500,000 credits (926,964)SGS LLR Silver: Earned 100,000 credits (247,344)TRP LLR Silver: Earned 100,000 credits (323,999)Woodall LLR Silver: Earned 100,000 credits (380,432)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (14,215)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (103,760)PPS Sieve Sapphire: Earned 20,000,000 credits (24,355,475)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,212,148)TRP Sieve (suspended) Gold: Earned 500,000 credits (821,022)AP 26/27 Silver: Earned 100,000 credits (105,118)GFN Amethyst: Earned 1,000,000 credits (1,121,065)PSA Jade: Earned 10,000,000 credits (13,724,730)
Message 78277 - Posted: 23 Jul 2014 | 17:39:41 UTC - in response to Message 78276.

Thanks for that info.
____________

Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 9366
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Credit: 101,656,132
RAC: 22,182
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,253,156)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (5,984,384)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,009,313)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)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 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (38,036,953)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 78278 - Posted: 23 Jul 2014 | 17:54:02 UTC - in response to Message 78277.

Thanks for that info.


You're welcome.

We don't expect to run out of work for any of the projects for several years, with two possible exceptions:

1) If there's a significant increase in the speed of testing for primes, either by some hardware innovation, an improvement to the LLR program, or a completely new algorithm, that would lower the "optimal sieve point" and further sieving on one of more projects might no longer be necessary. That could result in us shutting down a sieve project. (There's nothing like this on the horizon, so it's not likely.)

2) If we suddenly get very lucky and find a prime for all of the k's in one of the conjectures, that project will be complete and shut down. It could happen tomorrow, it could never happen, or anything inbetween. Chances are it won't be anytime soon.

Other than that, I expect all of our current BOINC projects to run for at least several years.
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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Credit: 1,656,506,401
RAC: 847
321 LLR Silver: Earned 100,000 credits (111,803)Cullen LLR Silver: Earned 100,000 credits (115,705)ESP LLR Bronze: Earned 10,000 credits (51,997)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (52,498)PPS LLR Bronze: Earned 10,000 credits (20,401)PSP LLR Silver: Earned 100,000 credits (304,120)SoB LLR Silver: Earned 100,000 credits (208,266)SR5 LLR Bronze: Earned 10,000 credits (95,360)SGS LLR Bronze: Earned 10,000 credits (78,989)TRP LLR Bronze: Earned 10,000 credits (15,753)Woodall LLR Bronze: Earned 10,000 credits (25,166)321 Sieve (suspended) Bronze: Earned 10,000 credits (31,242)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (168,367)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (341,319)PPS Sieve Sapphire: Earned 20,000,000 credits (31,984,579)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (10,473)TRP Sieve (suspended) Silver: Earned 100,000 credits (154,779)AP 26/27 Amethyst: Earned 1,000,000 credits (1,977,027)GFN Ruby: Earned 2,000,000 credits (4,693,557)PSA Double Amethyst: Earned 1,000,000,000 credits (1,616,065,000)
Message 99091 - Posted: 24 Sep 2016 | 8:02:57 UTC

Hello... I am oldjerryANO2011, Czech user - ID crossproject 12179, count 9 years, on account've almost 2 billion credits, of which 90% achieved on the 18 subprojects PrimeGrid. I try in vain to about the 19th sub - SRBase 5 - subprojects signed my account as non-existent. Nobody knows what needs to be done. Consult please...
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William Lee
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Joined: 30 Jan 17
Posts: 1
ID: 486844
Credit: 200,612
RAC: 0
ESP LLR Bronze: Earned 10,000 credits (52,088)PSP LLR Silver: Earned 100,000 credits (102,043)TRP Sieve (suspended) Bronze: Earned 10,000 credits (46,255)
Message 104448 - Posted: 1 Feb 2017 | 7:15:55 UTC - in response to Message 66386.

Can you tell me where does the URL exists?

Michael GoetzProject donor
Volunteer moderator
Project scientist
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Joined: 21 Jan 10
Posts: 9366
ID: 53948
Credit: 101,656,132
RAC: 22,182
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,253,156)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (5,984,384)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,009,313)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)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 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (38,036,953)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 104524 - Posted: 2 Feb 2017 | 16:34:29 UTC - in response to Message 104448.

Can you tell me where does the URL exists?


What URL? I'm afraid I don't understand your question.
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

mackerelProject donor
Volunteer tester
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Joined: 2 Oct 08
Posts: 1633
ID: 29980
Credit: 184,987,304
RAC: 89,352
321 LLR Ruby: Earned 2,000,000 credits (4,335,747)Cullen LLR Ruby: Earned 2,000,000 credits (4,619,611)ESP LLR Ruby: Earned 2,000,000 credits (3,725,865)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,220,326)PPS LLR Sapphire: Earned 20,000,000 credits (24,870,545)PSP LLR Jade: Earned 10,000,000 credits (10,128,604)SoB LLR Ruby: Earned 2,000,000 credits (2,643,659)SR5 LLR Jade: Earned 10,000,000 credits (12,262,110)SGS LLR Turquoise: Earned 5,000,000 credits (6,702,766)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Turquoise: Earned 5,000,000 credits (5,143,430)Woodall LLR Ruby: Earned 2,000,000 credits (2,471,793)321 Sieve (suspended) Silver: Earned 100,000 credits (203,937)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,070,475)PPS Sieve Sapphire: Earned 20,000,000 credits (39,662,287)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Jade: Earned 10,000,000 credits (12,231,866)GFN Jade: Earned 10,000,000 credits (17,029,965)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 104525 - Posted: 2 Feb 2017 | 16:41:25 UTC - in response to Message 104448.

If you want to participate in SR5 project, it is an option as part of PrimeGrid and doesn't have to be added as a separate project in BOINC. Go to "You account" then "Preference for this project" where you can choose which subprojects to take part in.

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