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

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MnStatusDetails
2234549Factored
FactorDigitsBitsDate
134698708948941077112331692683.52020-03-01 03:03:17
ECM
DigitsB1Curves
2550000143 / 280
Estimated T-Level: 22.6
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ed Knapton0800DA9BE0F887E20
Verified (Factored)1999-05-02B Matson / C Gutmann / E Bishop0800DA9BE0F887E2795
Verified (Factored)2018-04-20kkmrkkblmbrbk0800DA9BE0F887E2590497
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-03-01Christoph Zenger81EA36F88D81D8BB1209272853
Verified2020-03-01Niels_Mache_Nextcloud81EA36F88D81D8BB1170079053
History
DateUserTypeResult
2020-03-01Niels_Mache_NextcloudC-PRP
M2234549/13469870894894107711233169 : 81EA36F88D81D8BB
PRP: Verified
PRP without proof (not generated)
2020-03-01Christoph ZengerC-PRP
M2234549/13469870894894107711233169 : 81EA36F88D81D8BB
PRP: Verified
PRP without proof (not generated)
2020-03-01mnd9F-ECM
Factor: 13469870894894107711233169 / (ECM curve 2, B1=50000, B2=5000000, Sigma=7056885767018237)
2019-04-08TJAOINF
no factor from 2^67 to 2^68
2018-04-20kkmrkkblmbrbkC-LL
0800DA9BE0F887E2
2016-12-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-01-08Alexander DubrovinNF-PM1
B1=2000000, B2=65000000, E=12
2015-11-30Alexander DubrovinNF-PM1
B1=1000000, B2=5000000, E=6
2015-10-25ramgeisNF
no factor from 2^65 to 2^66
2015-03-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-10VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-30JossNF-PM1
B1=142448
2014-06-01JossNF-PM1
B1=113724
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-04-20Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-14Oscar ÖstlinNF-PM1
B1=85000, B2=1615000, E=6
2010-10-27Oscar ÖstlinNF-PM1
B1=75011
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61