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

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MnStatusDetails
29726369Factored
FactorDigitsBitsDate
796653843550049414198394940425547746812563859346152.52021-10-16 21:56:06
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2005-06-19C. Cooper / S. BooneCC7F9ACDCAF581D827988922
Verified (Factored)2013-06-05markrCC7F9ACDCAF581D824454129
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-16DobriEACA09EFF59CDDFE1349322553
P-1 factors
DateFactorB1B2
2021-10-167966538435500494141983949404255477468125638593103000051495000
History
DateUserTypeResult
2023-01-16curtiscCERT
PRP Certification
Proof certified good
2023-01-16DobriC-PRP
M29726369/7966538435500494141983949404255477468125638593 : EACA09EFF59CDDFE
PRP proof power = 9
PRP: Verified
Proof certified good
2021-10-16Architects CubedF-PM1
Factor: 7966538435500494141983949404255477468125638593 / (P-1, B1=1030000, B2=51495000)
2021-10-04TheJudgerNF
no factor from 2^74 to 2^75
2021-09-10TheJudgerNF
no factor from 2^73 to 2^74
2021-08-25TheJudgerNF
no factor from 2^72 to 2^73
2021-08-22TheJudgerNF
no factor from 2^71 to 2^72
2018-06-20monstNF
no factor from 2^70 to 2^71
2013-06-05markrC-LL
CC7F9ACDCAF581D8
2012-02-25Jerry HallettNF
no factor from 2^69 to 2^70
2012-02-07XyzzyNF
no factor from 2^68 to 2^69