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Message boards : News : AP27 Found!

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ReggieProject donor
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Joined: 10 May 14
Posts: 240
ID: 311759
Credit: 269,420,586
RAC: 127,210
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,037,769)Cullen LLR Ruby: Earned 2,000,000 credits (3,541,849)ESP LLR Ruby: Earned 2,000,000 credits (2,053,710)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,046,240)PPS LLR Jade: Earned 10,000,000 credits (12,735,797)PSP LLR Turquoise: Earned 5,000,000 credits (5,022,331)SoB LLR Turquoise: Earned 5,000,000 credits (5,125,022)SR5 LLR Turquoise: Earned 5,000,000 credits (5,046,188)SGS LLR Ruby: Earned 2,000,000 credits (2,682,790)TRP LLR Ruby: Earned 2,000,000 credits (2,016,337)Woodall LLR Ruby: Earned 2,000,000 credits (2,012,569)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,211)Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,006,134)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (22,440,747)AP 26/27 Sapphire: Earned 20,000,000 credits (20,526,311)GFN Emerald: Earned 50,000,000 credits (82,883,202)WW (retired) Emerald: Earned 50,000,000 credits (50,172,000)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 163219 - Posted: 3 Jun 2023 | 15:55:26 UTC

On 26 May 2023, 01:04:36 UTC, PrimeGrid’s AP27 Search (Arithmetic Progression of 27 primes) found the progression of 27 primes:

277699295941594831+170826477*23#*n for n=0..26

This is the second known AP27.

The discovery was made by Tom Greer (tng) of the United States using a NVIDIA GeForce RTX 4080 on an AMD Ryzen 9 7950X CPU @ 4.50GHz running Microsoft Windows 10 Professional x64 Edition. This computer took about 4 minutes and 22 seconds to process the task (each task tests 100 progression differences of 10 shifts each). Tom Greer is a member of the Antarctic Crunchers team.

The AP27 task was double checked by Vasil Zakiev (zvasi_000) of Russia and was returned on 26 May 2023 01:04:39 UTC. This task was run on an NVIDIA GeForce RTX 4090 on an AMD Ryzen 9 7950X CPU @ 4.50GHz running Microsoft Windows 11 Professional x64 Edition. The double check took about 1 minute and 27 seconds to complete. Vasil Zakiev is a member of the Crystal Dream team.

For more details, please see the official announcement.

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Profile JeppeSNProject donor
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Joined: 5 Apr 14
Posts: 1849
ID: 306875
Credit: 52,225,334
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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (684,183)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 Sapphire: Earned 20,000,000 credits (21,739,998)PSP LLR Gold: Earned 500,000 credits (598,093)SoB LLR Gold: Earned 500,000 credits (575,934)SR5 LLR Silver: Earned 100,000 credits (210,142)SGS LLR Silver: Earned 100,000 credits (142,930)TRP LLR Silver: Earned 100,000 credits (476,246)Woodall LLR Silver: Earned 100,000 credits (281,400)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)Cullen/Woodall Sieve Bronze: Earned 10,000 credits (22,952)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (52,559)GFN Ruby: Earned 2,000,000 credits (4,988,252)WW (retired) Jade: Earned 10,000,000 credits (13,756,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 163271 - Posted: 4 Jun 2023 | 17:26:11 UTC

In case the new AP27 does not get listed where the Official Announcement says it will be, I can say that it is listed on https://www.pzktupel.de/JensKruseAndersen/aprecords.php. /JeppeSN

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Message boards : News : AP27 Found!

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