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

PrimeNet Exponent Status

Exponent Range:





MnDetails
3622327
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 264
Factored
FactorDigitsBitsDate
260091541181398005010732374.52025-02-14 13:02:47
ECM
DigitsB1Curves
2550000142 / 280
Estimated T-Level: 22.5
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredCharlie Dorian1DB104AE6F057D730Windows,Prime95,v14,(aka WQ1)
Factored2000-02-16Mischa Kenn1DB104AE6F057D733307965Windows,Prime95,v19,NT service,(aka WV5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-02-14fordobrE7D837EB85580D731175411553
History
DateUserTypeResult
2025-02-14ChuckCERT
Proof certified good
2025-02-14fordobrC-PRPM3622327/26009154118139800501073 : E7D837EB85580D73
Proof Certified Good

Proof Power: 7

2025-02-14fordobrF-ECMFactor: 26009154118139800501073 / ECM curve 4, B1=117878, B2=275660385, Edwards Sigma=3691786596574602
2024-06-27JossNF-PM1B1=10000000, B2=14919114210
2024-01-19JossNF-PM1B1=2379056, B2=4778283510
2022-01-29Gordon SpenceNFno factor TF: 69-70
2020-10-21axnNFno factor TF: 68-69
2020-08-10axnNF-PM1B1=30000000, B2=1000000000
2020-06-23axnNF-PM1B1=30000000, B2=600000000
2018-10-29TJAOINFno factor TF: 67-68
2017-05-13JossNF-PM1B1=350000, B2=3500000, E=6
2016-12-23Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 62-63
2015-11-02Squeeky_SquirrelNF-PM1B1=175000, B2=4768750, E=6
2015-10-18ramgeisNFno factor TF: 65-66
2015-01-20VictordeHollanderNFno factor TF: 64-65
2015-01-20VictordeHollanderNFno factor TF: 63-64
2012-06-05GrunwalderGIMPNFno factor TF: 1-63
2012-01-16Squeeky_SquirrelNF-PM1B1=90000, B2=1620000, E=6
2011-05-31markrNFno factor TF: 1-62
2009-07-06Carsten KossendeyNF-PM1B1=20000, B2=245000
2009-03-11S485122NFno factor TF: 60-61
2000-02-16Michael KennC-LL1DB104AE6F057D73