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Message boards : Cullen/Woodall prime search : Am I dreaming or we got one of those rare primes?

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[C@B] Terminal
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Joined: 22 Feb 07
Posts: 88
ID: 5940
Credit: 219,397
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (23,447)TPS LLR (retired) Bronze: Earned 10,000 credits (18,644)321 Sieve Bronze: Earned 10,000 credits (13,155)PPS Sieve Bronze: Earned 10,000 credits (53,936)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (104,066)
Message 6105 - Posted: 6 Jul 2007 | 22:56:10 UTC

In fact, Willy found that 667071*2^667071-1 is prime... is that a good news or was an already known prime??

Rytis
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Joined: 22 Jun 05
Posts: 2639
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Credit: 20,845,900
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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 (15,569,095)Woodall LLR Silver: Earned 100,000 credits (101,463)321 Sieve 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 6109 - Posted: 7 Jul 2007 | 10:05:26 UTC

It's one of the primes that have already been found. We still ran through the ranges in case somebody missed one (extremely rare possibility), and to see if our search really works.
____________

JohnProject donor
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Joined: 21 Feb 06
Posts: 2876
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Credit: 2,681,934
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321 LLR Bronze: Earned 10,000 credits (11,773)Cullen LLR Bronze: Earned 10,000 credits (14,945)ESP LLR Bronze: Earned 10,000 credits (26,855)PPS LLR Bronze: Earned 10,000 credits (84,876)PSP LLR Bronze: Earned 10,000 credits (15,311)SoB LLR Bronze: Earned 10,000 credits (21,440)SR5 LLR Bronze: Earned 10,000 credits (29,270)SGS LLR Bronze: Earned 10,000 credits (26,616)TPS LLR (retired) Bronze: Earned 10,000 credits (36,288)TRP LLR Bronze: Earned 10,000 credits (41,655)Woodall LLR Bronze: Earned 10,000 credits (15,807)321 Sieve Bronze: Earned 10,000 credits (20,014)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (23,405)PPS Sieve Bronze: Earned 10,000 credits (36,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,306)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,738)GFN Bronze: Earned 10,000 credits (86,217)PSA Ruby: Earned 2,000,000 credits (2,143,756)
Message 6217 - Posted: 18 Jul 2007 | 20:01:11 UTC - in response to Message 6105.

In fact, Willy found that 667071*2^667071-1 is prime... is that a good news or was an already known prime??

From the double check, we are expecting to find the following KNOWN primes:

Woodalls
143018*2^143018-1
151023*2^151023-1
667071*2^667071-1
1195203*2^1195203-1
1268979*2^1268979-1
1467763*2^1467763-1

Cullens
262419*2^262419+1
361275*2^361275+1
481899*2^481899+1
1354828*2^1354828+1

Any other primes found will be new primes.
____________

Message boards : Cullen/Woodall prime search : Am I dreaming or we got one of those rare primes?

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