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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Exponent Range:










MnStatusDetails
7166371Factored
FactorDigitsBitsDate
96330989084378038748240812583.02023-01-21 12:42:53
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-07-04Mike Larkin489196DD024C9FAC6359430
Verified (Factored)2002-01-08Marc Getty / Phil Fizur489196DD024C9FAC2026125
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-26rucio5BD5D5CBAA72AC261423173853
P-1 factors
DateFactorB1B2
2023-01-21963309890843780387482408133000008474534250
History
DateUserTypeResult
2023-01-26theojkCERT
PRP Certification
Proof certified good
2023-01-26rucioC-PRP
M7166371/9633098908437803874824081 : 5BD5D5CBAA72AC26
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-21DRobinsonPEF-PM1
Factor: 9633098908437803874824081 / (P-1, B1=3300000, B2=8474534250)
2022-05-16USAFSSNF-PM1
B1=630000, B2=51030000
2021-09-30SRBaseNF
no factor from 2^71 to 2^72
2021-08-31SRBaseNF
no factor from 2^70 to 2^71
2021-08-19SRBaseNF
no factor from 2^69 to 2^70
2020-05-01TJAOINF
no factor from 2^68 to 2^69
2018-07-28ramgeisNF
no factor from 2^67 to 2^68
2016-10-25Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-21VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-05lycornNF
no factor from 2^64 to 2^65
2014-02-02NesowaNF
no factor from 2^63 to 2^64
2011-12-19James HeinrichNF-PM1
B1=135000, B2=2936250, E=6