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Message boards : News : World Record Cullen Mega Prime found

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Rytis
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Joined: 22 Jun 05
Posts: 2638
ID: 1
Credit: 20,744,180
RAC: 221
321 LLR Silver: Earned 100,000 credits (104,475)Cullen LLR Silver: Earned 100,000 credits (291,372)ESP LLR Bronze: Earned 10,000 credits (18,156)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (15,259)PPS LLR Silver: Earned 100,000 credits (107,362)PSP LLR Silver: Earned 100,000 credits (116,517)SoB LLR Silver: Earned 100,000 credits (151,232)SR5 LLR Bronze: Earned 10,000 credits (14,071)SGS LLR Silver: Earned 100,000 credits (100,082)TPS LLR (retired) Silver: Earned 100,000 credits (111,607)TRP LLR Jade: Earned 10,000,000 credits (15,467,375)Woodall LLR Silver: Earned 100,000 credits (101,463)321 Sieve (suspended) Silver: Earned 100,000 credits (201,501)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (214,653)Generalized Cullen/Woodall Sieve Bronze: Earned 10,000 credits (14,200)PPS Sieve Silver: Earned 100,000 credits (282,191)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (200,232)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,453,872)AP 26/27 Silver: Earned 100,000 credits (473,058)GFN Silver: Earned 100,000 credits (163,887)PSA Bronze: Earned 10,000 credits (97,541)
Message 23612 - Posted: 21 Apr 2009 | 2:10:00 UTC

On 20 Apr 2009 0:52:45 UTC, PrimeGrid's Cullen Prime Search found a World Record Cullen Mega Prime: 6328548*26328548+1 The prime is PrimeGrid's largest prime to date. It is 1,905,090 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 14th overall. It is the largest Cullen prime found and the largest found Mega Prime using LLR. The discovery was made by Dennis R. Gesker (Gesker) of the United States using an Intel Xeon E5420 @ 2.50GHz with 8GB RAM running Windows Server 2008. This computer took 32 hours 28 minutes to complete the primality test. For more details, please see the official announcement. Decimal representation of the number is also available.

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Message boards : News : World Record Cullen Mega Prime found

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