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
1882099Factored
FactorDigitsBitsDate
245428524373207495470432412684.32017-04-30 23:18:03
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)Bill Ingles6BFA6078EC7741B50
Verified (Factored)1999-03-15James Arnold6BFA6078EC7741B5774922
Verified (Factored)2015-07-06MadPoo6BFA6078EC7741B5233123
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertron1E8E70258B8A67581013
Verified2017-10-19Oliver Kruse1E8E70258B8A67581169625013
P-1 factors
DateFactorB1B2
2017-04-3024542852437320749547043241149299214929920
History
DateUserTypeResult
2017-10-19Oliver KruseC-PRP
M1882099/24542852437320749547043241 : 1E8E70258B8A6758
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1882099/24542852437320749547043241 : 1E8E70258B8A6758
PRP: Verified
PRP without proof (not generated)
2017-04-30JossF-PM1
Factor: 24542852437320749547043241 / (P-1, B1=1492992, B2=14929920, E=12)
2017-03-01JossNF-PM1
B1=1244160, B2=12441600, E=12
2017-01-21JossNF-PM1
B1=1036800
2017-01-03JossNF-PM1
B1=864000
2016-12-23JossNF-PM1
B1=720000
2016-09-16JossNF-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
2015-09-12ramgeisNF
no factor from 2^65 to 2^66
2015-07-06MadPooC-LL
6BFA6078EC7741B5
2015-05-09snme2pm1NF
no factor from 2^64 to 2^65
2015-05-09snme2pm1NF
no factor from 2^63 to 2^64
2012-01-15markrNF-PM1
B1=275000, B2=6000000, E=12
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-01Architects CubedNF
no factor from 2^60 to 2^61