Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
5073389Factored
FactorDigitsBitsDate
93126903419474833584215692582.92021-11-06 09:05:41
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)2000-09-15Joe AquilinaB3C757CD79C7178E3938201
Verified (Factored)2006-02-01Tom CattrallB3C757CD79C7178E0
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-11-06ATH424FA19555CFC5351362982953
History
DateUserTypeResult
2021-11-06Simon JosefssonCERT
PRP Certification
Proof certified good
2021-11-06ATHC-PRP
M5073389/9312690341947483358421569 : 424FA19555CFC535
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-06ATHF-PP1
Start=2/7, B1=2500000, B2=87500000, Factor: 9312690341947483358421569
2021-04-02-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-31-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-31-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-18TJAOINF
no factor from 2^68 to 2^69
2018-06-11ramgeisNF
no factor from 2^67 to 2^68
2017-07-09mikrNF-PM1
B1=1500000, B2=45000000, E=12
2016-05-22Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^61
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-08-02snme2pm1NF
no factor from 2^65 to 2^66
2014-09-15monstNF
no factor from 2^64 to 2^65
2014-09-01krackerNF
no factor from 2^63 to 2^64
2009-08-15USAFSSNF-PM1
B1=60000, B2=1065000, E=6
2009-08-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2008-12-28Sturle SundeNF
no factor from 2^61 to 2^62