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:
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MnStatusDetails
2826683No factors below 269
P-1
B1=5 000 000
B2=200 000 000
LL
StatusDateUserResidueShift
Verified1999-07-12Sam Robertson9C1015B6C7BBC4B1752353
Verified2001-07-07IES R.Dieste-I.Larrosa9C1015B6C7BBC4B10
Verified2018-09-09kkmrkkblmbrbk9C1015B6C7BBC4B11664450
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2020-11-09-Anonymous-factor ECM small0.0 % 2020-11-092021-01-08
History
DateUserTypeResult
2021-05-13TJAOINFno factor from 2^68 to 2^69
2020-01-24masserNF-PM1B1=5000000, B2=200000000, E=12
2019-11-10masserNF-PM1B1=3000000, B2=30000000, E=12
2019-01-03chuenkitNFno factor from 2^67 to 2^68
2018-09-09kkmrkkblmbrbkC-LL9C1015B6C7BBC4B1
2017-10-28Gordon SpenceNFno factor from 2^66 to 2^67
2017-03-13Jocelyn LaroucheNF-PM1B1=361303, B2=3613030, E=6
2016-12-14Jocelyn LaroucheNF-PM1B1=301086
2016-11-03Jocelyn LaroucheNF-PM1B1=250905
2016-10-27Jocelyn LaroucheNF-PM1B1=174240
2016-02-23Mark RoseNFno factor from 2^1 to 2^60
2016-02-13ramgeisNFno factor from 2^65 to 2^66
2015-04-21VictordeHollanderNFno factor from 2^64 to 2^65
2015-04-21VictordeHollanderNFno factor from 2^63 to 2^64
2013-01-10dbaughNFno factor from 2^62 to 2^63
2012-02-16markrNFno factor from 2^61 to 2^62
2009-02-13Sturle SundeNFno factor from 2^60 to 2^61
2003-11-28-Anonymous-NF-PM1B1=2048, B2=204800
2001-07-07Ignacio_LarrosaC-LL9C1015B6C7BBC4B1
1999-07-12-Anonymous-C-LL9C1015B6C7BBC4B1