Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnDetails
8329267
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
612057392866860962572065.72011-02-06 06:44:55
LL
StatusDateUserResidueShiftSoftware
Factored1999-11-17David Tsao6788F9F8E4BC79EE2035012Windows,Prime95,v19,(aka WV1)
Factored2002-12-09Marc Getty / Phil Fizur6788F9F8E4BC79EE914314Windows,Prime95,v21,NT service,(aka WX5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-17Oliver Kruse42C89AD5563891531779864453
Verified
PRP without proof (not generated)
2020-04-21ATH42C89AD5563891531825869853
History
DateUserTypeResult
2025-01-02Stef42NF-PM1B1=1125000, B2=1644906900
2020-04-21ATHC-PRPM8329267/61205739286686096257 : 42C89AD556389153
2018-10-17Oliver KruseC-PRPM8329267/61205739286686096257 : 42C89AD556389153
2011-02-06Carsten KossendeyFFactor: 61205739286686096257
2002-12-09-anonymous-C-LL6788F9F8E4BC79EE
2002-08-31AmperioNF-PM1B1=35000, B2=35000
2002-05-05Dave ZookNFno factor TF: 1-64
1999-11-17-anonymous-C-LL6788F9F8E4BC79EE
1999-09-22Dave ZookNFno factor TF: 1-64
1998-11-28-anonymous-NFno factor TF: 1-63
1998-09-06-anonymous-NFno factor TF: 1-62
1998-09-06-anonymous-NFno factor TF: 1-61