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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Exponent Range:










MnStatusDetails
2528893Factored
FactorDigitsBitsDate
20101158098729826090738476959544292490339127.22023-02-06 23:03:33
ECM
DigitsB1Curves
2550000177 / 280
Estimated T-Level: 23.2
TF below 2^72 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Alex and Nick Myrman249F0
Verified (Factored)Brian J. BeesleyD50F76E10362249F0
Verified (Factored)Michael B. ClarkD50F76E10362249F0
Verified (Factored)2015-11-14MadPooD50F76E10362249F1372584
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2023-02-08LordJulius45BF8172DD2058CE164657253
P-1 factors
DateFactorB1B2
2023-02-0620101158098729826090738476959544292490350000008646469650
History
DateUserTypeResult
2023-02-08V-glass PngosCERT
PRP Certification
Proof certified good
2023-02-08LordJuliusC-PRP
M2528893/201011580987298260907384769595442924903 : 45BF8172DD2058CE
PRP proof power = 7
PRP: Verified
Proof certified good
2023-02-06Architects CubedF-PM1
Factor: 201011580987298260907384769595442924903 / (P-1, B1=5000000, B2=8646469650)
2022-09-15seatseaNF-PM1
B1=3040000, B2=7925689200
2021-06-10TJAOINF
no factor from 2^68 to 2^69
2019-04-15TJAOINF
no factor from 2^67 to 2^68
2018-01-03JossNF-PM1
B1=2528893, B2=16000000, E=12
2017-08-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-14MadPooC-LL
D50F76E10362249F
2015-11-08ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-14Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-03-17James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-06JossNF-PM1
B1=50000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61