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
13782553Factored
FactorDigitsBitsDate
82304420375618749716972272.82021-09-29 18:00:49
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-02-17Tony GrazianoA5627B09010F892510353708
Verified (Factored)2005-05-28Sturle SundeA5627B09010F892511802670
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-10-06Perig569B4D99D06946121230742753
P-1 factors
DateFactorB1B2
2021-09-2982304420375618749716972000000142000000
History
DateUserTypeResult
2022-10-06David BarinaCERT
PRP Certification
Proof certified good
2022-10-06PerigC-PRP
M13782553/8230442037561874971697 : 569B4D99D0694612
PRP proof power = 8
PRP: Verified
Proof certified good
2021-09-29Architects CubedF-PM1
Factor: 8230442037561874971697 / (P-1, B1=2000000, B2=142000000)
2021-09-05ChuckNF
no factor from 2^71 to 2^72
2021-09-04SRBaseNF
no factor from 2^70 to 2^71
2021-08-09SRBaseNF
no factor from 2^69 to 2^70
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2017-12-22-Anonymous-NF
no factor from 2^67 to 2^68
2015-08-20NesowaNF
no factor from 2^66 to 2^67
2014-07-02NesowaNF
no factor from 2^65 to 2^66