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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MnStatusDetails
3545051Factored
FactorDigitsBitsDate
8282025796220659774719962632789.42021-07-12 23:33:34
ECM
DigitsB1Curves
255000028 / 280
Estimated T-Level: 20.5
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-04-05Paul Randal & Co7E4C3CF84BB9A5A10
Verified (Factored)2002-07-14Todd Lewis7E4C3CF84BB9A5A12576148
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-07-14kutens5A50E6B88C6561E81150510853
History
DateUserTypeResult
2022-05-13JossNF-PM1
B1=500000, B2=130364850
2022-03-01JossNF-PM1
B1=100000
2021-07-14curtiscCERT
PRP Certification
Proof certified good
2021-07-14kutensC-PRP
M3545051/828202579622065977471996263 : 5A50E6B88C6561E8
PRP proof power = 7
PRP: Verified
Proof certified good
2021-07-12kutensF-ECM
Factor: 828202579622065977471996263 / (ECM curve 5, B1=50000, B2=6800000, Sigma=4780522343420582)
2021-03-19-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-18-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-18-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-23axnNF
no factor from 2^68 to 2^69
2018-10-08TJAOINF
no factor from 2^67 to 2^68
2017-01-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-03ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-12-10HBendtzNF-PM1
B1=500000, B2=12000000, e=12
2015-01-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-27VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-17JossNF-PM1
B1=96210
2014-08-07JossNF-PM1
B1=78105
2012-06-20GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-30USAFSSNF-PM1
B1=60000, B2=990000, E=6
2011-06-27markrNF
no factor from 2^61 to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-16S485122NF
no factor from 2^60 to 2^61