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

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MnStatusDetails
1860829Factored
FactorDigitsBitsDate
3124142149688146192457692478.02021-08-13 08:33:07
90646170967401805309673832582.92019-11-30 00:20:34
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)matt thomlinson90DAA694461CE40A0
Verified (Factored)1998-12-21George S. Taylor90DAA694461CE40A682808
Verified (Factored)2015-07-16MadPoo90DAA694461CE40A1786069
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2019-11-30mnd990086F6E14037E9C150033753
Verified (Factored)2019-12-01marssystems90086F6E14037E9C120739553
Verified2021-08-13SRJ287790086F6E14037E9C2100660553
History
DateUserTypeResult
2021-08-13rushynCERT
PRP Certification
Proof certified good
2021-08-13SRJ2877C-PRP
M1860829/312414214968814619245769/9064617096740180530967383 : 90086F6E14037E9C
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-13TJAOIF-ECM
Factor: 312414214968814619245769 / (ECM curve 16, B1=50000, B2=6600000)
2019-12-01marssystemsC-PRP
M1860829/9064617096740180530967383 : 90086F6E14037E9C
PRP: Verified (Factored)
PRP without proof (not generated)
2019-11-30mnd9C-PRP
M1860829/9064617096740180530967383 : 90086F6E14037E9C
PRP: Verified (Factored)
PRP without proof (not generated)
2019-11-30penluF-ECM
Factor: 9064617096740180530967383 / (ECM curve 2, B1=50000, B2=5000000, Sigma=380889744998234)
2019-07-08TJAOINF
no factor from 2^67 to 2^68
2018-10-25JossNF-PM1
B1=2579889, B2=204691190, E=12
2018-09-17JossNF-PM1
B1=2579889, B2=186082900, E=12
2018-05-14TJAOINF
no factor from 2^66 to 2^67
2018-02-26JossNF-PM1
B1=2579889, B2=103195560, E=12
2018-02-11JossNF-PM1
B1=2579889, B2=51597780, E=12
2017-05-22JossNF-PM1
B1=2579889, B2=25798890, E=12
2017-04-01JossNF-PM1
B1=2149908, B2=21499080, E=12
2017-03-28JossNF-PM1
B1=1791590, B2=17915900, E=12
2017-03-22JossNF-PM1
B1=1492992, B2=14929920, E=12
2017-02-11JossNF-PM1
B1=1244160, B2=12441600, E=12
2017-01-14JossNF-PM1
B1=1036800
2016-12-29JossNF-PM1
B1=864000
2016-12-19JossNF-PM1
B1=720000
2016-10-29JossNF-PM1
B1=600000
2016-10-07JossNF-PM1
B1=500000, B2=39600000, E=6
2016-09-30JossNF-PM1
B1=500000, B2=33000000, E=6
2016-09-13JossNF-PM1
B1=500000, B2=30000000, E=12
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-07Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-09-10ramgeisNF
no factor from 2^65 to 2^66
2015-07-16MadPooC-LL
90DAA694461CE40A
2015-05-07snme2pm1NF
no factor from 2^64 to 2^65
2015-05-07snme2pm1NF
no factor from 2^63 to 2^64
2012-01-05markrNF-PM1
B1=275000, B2=6000000, E=12
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-06Architects CubedNF
no factor from 2^60 to 2^61