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
2436409
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
232054686133831613512064.32010-03-06 06:11:46
ECM
DigitsB1Curves
2550000130 / 280
Estimated T-Level: 22.3
TF below 2^69 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1998-06-01Teun Nijssen937EEF138CE5200C0Windows,Prime95,v15,(aka WR1)
Factored1999-04-13Michael J. Kilfoyle937EEF138CE5200C794979Windows,Prime95,v18,(aka WU1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-13Oliver Kruse14A51CCCD7BD510C153302853
Verified
PRP without proof (not generated)
2017-11-27storm551014A51CCCD7BD510C184179053
History
DateUserTypeResult
2022-03-10LordJuliusNFno factor TF: 1-60
2018-09-28alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-27storm5510C-PRPM2436409/23205468613383161351 : 14A51CCCD7BD510C
2017-10-13Oliver KruseC-PRPM2436409/23205468613383161351 : 14A51CCCD7BD510C
2010-03-06LupoF-ECMFactor: 23205468613383161351
2009-01-15Sturle SundeNFno factor TF: 60-61
2003-10-31Team Prime RibNF-PM1B1=15000, B2=217500
2003-10-14-anonymous-NF-PM1B1=2048, B2=204800
1999-10-29-anonymous-C-LL937EEF138CE5200C
1999-04-13-anonymous-C-LL937EEF138CE5200C
1999-03-15-anonymous-NFno factor TF: 1-59
1998-06-01-anonymous-C-LL937EEF138CE5200C
1998-02-08-anonymous-NFno factor TF: 1-58