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

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Exponent Range:










MnStatusDetails
1827901Factored
FactorDigitsBitsDate
14335432343941920055992270.32021-02-12 09:32:28
137666635549877709595612373.52023-09-11 09:36:13
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)Scott Klettke6E0FCC07ED74A7300
Bad1999-01-02James ArnoldDA1B0E9727E9121E616441
Verified (Factored)1999-03-15Ethan Hansen6E0FCC07ED74A730745856
Verified (Factored)2015-06-27MadPoo6E0FCC07ED74A7301337573
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2021-02-12ViliamFFD3DC21F6AAB3B9C185777853
Verified2023-09-11Naegi MakotoFD3DC21F6AAB3B9C254386653
History
DateUserTypeResult
2023-09-11PrairiePrimeCERT
PRP Certification
Proof certified good
2023-09-11Naegi MakotoC-PRP
M1827901/1433543234394192005599/13766663554987770959561 : FD3DC21F6AAB3B9C
PRP proof power = 7
PRP: Verified
Proof certified good
2023-09-11TJAOIF-ECM
Factor: 13766663554987770959561 / (ECM curve 5, B1=250000, B2=40000000, Sigma=1189546338671311)
2021-02-12Juza89CERT
PRP Certification
Proof certified good
2021-02-12ViliamFC-PRP
M1827901/1433543234394192005599 : FD3DC21F6AAB3B9C
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2021-02-12mnd9F-ECM
Factor: 1433543234394192005599 / (ECM curve 6, B1=50000, B2=5000000, Sigma=5166182012289057)
2019-06-24TJAOINF
no factor from 2^67 to 2^68
2018-09-12JossNF-PM1
B1=2384605, B2=182790100, E=12
2018-04-23TJAOINF
no factor from 2^66 to 2^67
2018-02-24JossNF-PM1
B1=2384605, B2=95384200, E=12
2018-02-08JossNF-PM1
B1=2384605, B2=47692100, E=12
2017-05-22JossNF-PM1
B1=2384605, B2=23846050, E=12
2017-03-31JossNF-PM1
B1=1987171, B2=19871710, E=12
2017-03-28JossNF-PM1
B1=1655976, B2=16559760, E=12
2017-03-20JossNF-PM1
B1=1379980, B2=13799800, E=12
2016-10-29JossNF-PM1
B1=958320
2016-10-27JossNF-PM1
B1=798600
2016-10-07JossNF-PM1
B1=500000, B2=36000000, E=6
2016-08-23JossNF-PM1
B1=500000, B2=30000000, E=12
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-06Bruno VictalNF-PM1
B1=500000, B2=15000000, E=12
2015-09-04ramgeisNF
no factor from 2^65 to 2^66
2015-06-27MadPooC-LL
6E0FCC07ED74A730
2015-04-25snme2pm1NF
no factor from 2^64 to 2^65
2015-04-25snme2pm1NF
no factor from 2^63 to 2^64
2011-12-31markrNF-PM1
B1=275000, B2=6000000, E=12
2011-03-08GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-09Architects CubedNF
no factor from 2^60 to 2^61