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
1843147No factors below 268
P-1
B1=1 843 147
B2=184 314 700
LL
StatusDateUserResidueShift
VerifiedJoel SmithB87FB44944672AEE0
Bad1999-05-30Aaron BC4DD4BE518C378A41581159
Verified1999-08-22Franck TROMMENSCHLAGERB87FB44944672AEE336530
Verified2015-07-06MadPooB87FB44944672AEE169962
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2021-05-08-Anonymous-factor ECM small0.0 % 2021-05-082021-07-07
2021-05-07-Anonymous-factor ECM small0.0 % 2021-05-072021-07-06
History
DateUserTypeResult
2019-06-24TJAOINFno factor from 2^67 to 2^68
2018-08-06Jocelyn LaroucheNF-PM1B1=1843147, B2=184314700, E=12
2017-11-24TJAOINFno factor from 2^66 to 2^67
2016-02-23Mark RoseNFno factor from 2^61 to 2^62
2016-02-23Mark RoseNFno factor from 2^62 to 2^63
2016-02-23Mark RoseNFno factor from 2^58 to 2^60
2015-09-06ramgeisNFno factor from 2^65 to 2^66
2015-07-12mikrNF-PM1B1=2780000, B2=91760000, E=12
2015-07-06MadPooC-LLB87FB44944672AEE
2015-04-27snme2pm1NFno factor from 2^64 to 2^65
2015-04-27snme2pm1NFno factor from 2^63 to 2^64
2014-09-25Jocelyn LaroucheNF-PM1B1=169646
2014-05-19Jocelyn LaroucheNF-PM1B1=134823
2011-02-11Carsten KossendeyNF-PM1B1=100000, B2=1700000, E=6
2011-01-21GrunwalderGIMPNFno factor from 2^1 to 2^63
2010-04-08Architects CubedNFno factor from 2^60 to 2^61
2003-01-16-Anonymous-NFno factor to 2^58
1999-08-22-Anonymous-C-LLB87FB44944672AEE
1999-05-30MadPooC-LLC4DD4BE518C378A4