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

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MnStatusDetails
2937269Factored
FactorDigitsBitsDate
3594504994989173372830332478.32020-12-11 12:54:43
ECM
DigitsB1Curves
255000044 / 280
Estimated T-Level: 20.8
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Michael J. Kilfoyle9237C0FB61EE4D5A0
Verified (Factored)1999-05-23Will Carroll9237C0FB61EE4D5A2676866
Verified (Factored)2018-10-09kkmrkkblmbrbk9237C0FB61EE4D5A5274
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-12-11mrh1B030EB147AD742D119286253
History
DateUserTypeResult
2020-12-11curtiscCERT
PRP Certification
Proof certified good
2020-12-11mrhC-PRP
M2937269/359450499498917337283033 : 1B030EB147AD742D
PRP proof power = 7
PRP: Verified
Proof certified good
2020-12-11KeysarecoolF-ECM
Factor: 359450499498917337283033 / (ECM curve 5, B1=50000, B2=5000000, Sigma=6804739480219109)
2018-12-22chuenkitNF
no factor from 2^67 to 2^68
2018-10-09kkmrkkblmbrbkC-LL
9237C0FB61EE4D5A
2017-11-24Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-04-29VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-25VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2012-01-01markrNF
no factor from 2^61 to 2^62
2010-11-08markrNF-PM1
B1=105000, B2=2283750, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61