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

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MnDetails
2345657
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 262
Factored
FactorDigitsBitsDate
716549844008892011427832375.92015-07-26 16:47:47
ECM
DigitsB1Curves
2550000280 / 280
30250000121 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredJeremy Goulstone2EA71507A97156690Windows,Prime95,v11,(aka WC)
Factored1999-03-01Martijn Otto2EA71507A97156691351164Windows,Prime95,v17,(aka WT1)
Factored2009-11-28Antikristianos2EA71507A97156691327505Windows 64-bit,Prime95,v25.11,build 2
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-12Oliver KruseF063148C37132CBA1013
Verified
PRP without proof (not generated)
2017-11-24storm5510F063148C37132CBA123993913
History
DateUserTypeResult
2024-12-25-anonymous-C-LL2EA71507A9715669
2018-03-18alpertronNF-PM1B1=500000, B2=15000000, E=12
2017-11-24storm5510C-PRP
M2345657/71654984400889201142783 : F063148C37132CBA
2017-10-12Oliver KruseC-PRPM2345657/71654984400889201142783 : F063148C37132CBA
2015-07-26guruF-ECMFactor: 71654984400889201142783
2014-03-08Never Odd Or EvenNFno factor TF: 69-70
2014-03-08Never Odd Or EvenNFno factor TF: 68-69
2014-03-08Never Odd Or EvenNFno factor TF: 67-68
2014-03-08Never Odd Or EvenNFno factor TF: 66-67
2014-03-08Never Odd Or EvenNFno factor TF: 65-66
2013-11-12David CampeauNFno factor TF: 64-65
2013-10-20SRJ2877NFno factor TF: 63-64
2013-10-20SRJ2877NFno factor TF: 62-63
2012-05-29Sebastian HornbostelNFno factor TF: 61-62
2010-03-02BudNF-PM1B1=500000, B2=10000000, E=12
2009-11-28AntikristianosC-LL2EA71507A9715669
2009-01-15Sturle SundeNFno factor TF: 60-61
2003-09-21-anonymous-NF-PM1B1=2048, B2=204800
1999-03-01Martijn OttoC-LL2EA71507A9715669