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

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MnStatusDetails
11318563Factored
FactorDigitsBitsDate
1797011836961829158673372477.22021-10-23 00:24:36
409256183608559872817737167853731101.72021-10-23 00:24:37
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Bad2001-06-03David ChristensenC1235B331C15E21C5802328
Verified (Factored)2001-12-22Jacob D. HuntFF0B57DAF54BB6C51505275
Verified (Factored)2004-04-09Michael CollierFF0B57DAF54BB6C510477586
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-10-24LaurV5A8FE199FA5AC66F2133672953
P-1 factors
DateFactorB1B2
2021-10-231797011836961829158673376189107185673210
2021-10-2340925618360855987281773716785376189107185673210
History
DateUserTypeResult
2021-10-24curtiscCERT
PRP Certification
Proof certified good
2021-10-24LaurVC-PRP
M11318563/179701183696182915867337/4092561836085598728177371678537 : 5A8FE199FA5AC66F
PRP proof power = 8
PRP: Verified
Proof certified good
2021-10-23-Anonymous-NF
no factor from 2^71 to 2^72
2021-10-23LaurVF-PM1
Factor: 735438206294405813130223741791584805574508614902245969 / (P-1, B1=6189107, B2=185673210)
2021-10-23LaurVF-PM1
Factor: 735438206294405813130223741791584805574508614902245969 / (P-1, B1=6189107, B2=185673210)
2021-08-15SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2016-01-04VictordeHollanderNF
no factor from 2^66 to 2^67
2015-02-15NumberwangNF
no factor from 2^65 to 2^66
2014-06-01HBendtzNF-PM1
B1=600000, B2=12000000, e=12
2013-11-20lycornNF
no factor from 2^64 to 2^65