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

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Exponent Range:










MnStatusDetails
7879219Factored
FactorDigitsBitsDate
3393677699167164345078562374940497212064004744144.62022-02-14 12:19:22
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)2000-01-12INTERSHOP CommunicationsE0D7A35F7CFE03970
Verified (Factored)2002-07-14Dan RappE0D7A35F7CFE03974722880
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-02-14Oliver Kruse4352FBCEFBF01064145590753
P-1 factors
DateFactorB1B2
2022-02-14339367769916716434507856237494049721206400472500000040052471550
History
DateUserTypeResult
2022-02-14CaptainEntropyCERT
PRP Certification
Proof certified good
2022-02-14Oliver KruseC-PRP
M7879219/33936776991671643450785623749404972120640047 : 4352FBCEFBF01064
PRP proof power = 8
PRP: Verified
Proof certified good
2022-02-14Oliver KruseF-PM1
Factor: 33936776991671643450785623749404972120640047 / (P-1, B1=25000000, B2=40052471550)
2021-10-29SRBaseNF
no factor from 2^71 to 2^72
2021-10-14Architects CubedNF-PM1
B1=411000, B2=23398000
2021-08-26SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2020-02-14TJAOINF
no factor from 2^68 to 2^69
2018-08-05ramgeisNF
no factor from 2^67 to 2^68
2016-08-31Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-09VictordeHollanderNF
no factor from 2^65 to 2^66
2013-12-19David CampeauNF
no factor from 2^64 to 2^65
2013-10-05NesowaNF
no factor from 2^63 to 2^64
2012-09-12NesowaNF-PM1
B1=100000, B2=1900000, E=6