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
2134963Factored
FactorDigitsBitsDate
515878015415798748727065832792995.42017-10-06 10:58:20
ECM
DigitsB1Curves
2550000102 / 280
Estimated T-Level: 21.8 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Marko Santala03C5F44B6129487D0
Verified (Factored)1999-02-07Charles Dorian03C5F44B6129487D1021444
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-08Oliver Kruse5B69D7E700E554661013
Verified2017-11-18kkmrkkblmbrbk5B69D7E700E55466157983113
P-1 factors
DateFactorB1B2
2017-10-06515878015415798748727065832792500000125000000
History
DateUserTypeResult
2017-11-18kkmrkkblmbrbkC-PRP
M2134963/51587801541579874872706583279 : 5B69D7E700E55466
PRP: Verified
PRP without proof (not generated)
2017-10-08Oliver KruseC-PRP
M2134963/51587801541579874872706583279 : 5B69D7E700E55466
PRP: Verified
PRP without proof (not generated)
2017-10-06mikrF-PM1
Factor: 51587801541579874872706583279 / (P-1, B1=2500000, B2=125000000, E=12)
2016-10-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-12-27ramgeisNF
no factor from 2^65 to 2^66
2015-03-18VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-18VictordeHollanderNF
no factor from 2^63 to 2^64
2013-11-13c10ck3rNF-PM1
B1=500000, B2=10000000, E=12
2013-02-21dbaughNF
no factor from 2^62 to 2^63
2012-04-15Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-11-25Oscar ÖstlinNF-PM1
B1=80000, B2=1500000, E=6
2010-10-25Oscar ÖstlinNF-PM1
B1=75011
2009-01-04Sturle SundeNF
no factor from 2^60 to 2^61