Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
2605927
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
301291868982315381672064.72009-02-21 15:14:09
234311771365042649445112374.32024-04-20 06:13:37
ECM
DigitsB1Curves
2550000230 / 280
Estimated T-Level: 24.1 ⓘ
TF below 2^75 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredLouis Towles9D0E9C591F1AE2260Windows,Prime95,v14,(aka WQ1)
Factored1999-05-09Edo de Roo Jankovic9D0E9C591F1AE2262176972Windows,Prime95,v18,(aka WU1)
PRP
StatusProofDateUserResidueShiftTypeBase
Factored
Certified Good
Power=7
2026-10-04Jason LynchBE83732674A12E89258320713
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-15Oliver KruseBE83732674A12E89142240153
Factored
PRP without proof (not generated)
2017-12-02kkmrkkblmbrbkBE83732674A12E891241621953
Verified
Certified Good
2024-04-20fbaurBE83732674A12E89230924253
History
DateUserTypeResult
2026-10-04Khurshid SuyunovCERT
Proof certified good
2026-10-04Jason LynchC-PRPBE83732674A12E89
Proof Certified Good

Proof Power: 7

2024-04-20JG48CERT
Proof certified good
2024-04-20fbaurC-PRPM2605927/30129186898231538167/23431177136504264944511 : BE83732674A12E89
Proof Certified Good

Proof Power: 7

2024-04-20fbaurF-ECMFactor: 23431177136504264944511 / ECM curve 4, B1=50000, B2=21617310, Edwards Sigma=3557804036863767
2022-03-11LordJuliusNFno factor TF: 1-60
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-02kkmrkkblmbrbkC-PRPM2605927/30129186898231538167 : BE83732674A12E89
2017-10-15Oliver KruseC-PRPM2605927/30129186898231538167 : BE83732674A12E89
2009-02-21maxyboF-ECMFactor: 30129186898231538167
2009-01-27Sturle SundeNFno factor TF: 60-61
2003-11-08Team Prime RibNF-PM1B1=15000, B2=217500
2003-10-31-anonymous-NF-PM1B1=2048, B2=204800
2003-01-25edoderooC-LL9D0E9C591F1AE226
2003-01-25edoderooNFno factor TF: 1-59
1999-05-09edoderooC-LL9D0E9C591F1AE226
1999-03-26edoderooNFno factor TF: 1-59