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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MnStatusDetails
2794093Factored
FactorDigitsBitsDate
20865875181265326475314472580.82020-11-07 03:02:35
ECM
DigitsB1Curves
255000049 / 280
Estimated T-Level: 20.9
TF below 2^64 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ethan HansenECB5EFE92C70D75F0
Verified (Factored)1999-05-16Brian DohertyECB5EFE92C70D75F49627
Verified (Factored)2018-08-30kkmrkkblmbrbkECB5EFE92C70D75F516579
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-11-07mrhBDA37CECAD27C2611128528053
Verified2020-11-07KuyiytereaBDA37CECAD27C261173409853
History
DateUserTypeResult
2020-11-07Jim DonovanCERT
PRP Certification
Proof certified good
2020-11-07KuyiytereaC-PRP
M2794093/2086587518126532647531447 : BDA37CECAD27C261
PRP proof power = 7
PRP: Verified
Proof certified good
2020-11-07mrhC-PRP
M2794093/2086587518126532647531447 : BDA37CECAD27C261
PRP: Verified
PRP without proof (not generated)
2020-11-07rextheruntF-ECM
Factor: 2086587518126532647531447 / (ECM curve 2, B1=50000, B2=5000000)
2019-12-14BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2019-02-26chuenkitNF
no factor from 2^67 to 2^68
2018-08-30kkmrkkblmbrbkC-LL
ECB5EFE92C70D75F
2017-10-19Gordon SpenceNF
no factor from 2^66 to 2^67
2017-08-04JossNF-PM1
B1=400000, B2=4000000, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-09ramgeisNF
no factor from 2^65 to 2^66
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2012-03-07Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-24BigBrotherNF-PM1
B1=200000, B2=5000000, E=6
2009-02-12Sturle SundeNF
no factor from 2^60 to 2^61