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

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MnDetails
2652437
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
1221823468857017028800172476.72010-07-05 02:36:31
ECM
DigitsB1Curves
2550000124 / 280
Estimated T-Level: 22.2
TF below 2^69 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredJim Gifford36015735514A6B350Linux 32-bit,Prime95,v14,(aka WQ2)
Factored1999-04-13Greg Whelan36015735514A6B351654836Linux 32-bit,Prime95,v17,(aka WT2)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-18Oliver Kruse50BDB3A844B415C31249375453
Verified
PRP without proof (not generated)
2017-12-03storm551050BDB3A844B415C31160854953
History
DateUserTypeResult
2022-03-11LordJuliusNFno factor TF: 1-60
2019-07-04alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-12-03storm5510C-PRPM2652437/122182346885701702880017 : 50BDB3A844B415C3
2017-10-18Oliver KruseC-PRPM2652437/122182346885701702880017 : 50BDB3A844B415C3
2010-07-05LupoF-ECMFactor: 122182346885701702880017
2009-06-23USAFSSNF-PM1B1=30000, B2=420000
2009-01-27Sturle SundeNFno factor TF: 60-61
2003-10-31-anonymous-NF-PM1B1=2048, B2=204800
1999-04-13-anonymous-C-LL36015735514A6B35
1999-04-02-anonymous-NFno factor TF: 1-59