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
2826997No factors below 269
P-1
B1=5 000 000
B2=200 000 000
LL
StatusDateUserResidueShift
VerifiedIES R.Dieste-I.LarrosaBEBBD81E38837A870
Verified1999-05-23Johan SchrooyenBEBBD81E38837A87518552
Verified2018-09-09kkmrkkblmbrbkBEBBD81E38837A871540929
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-LLBEBBD81E38837A87
2017-10-28Gordon SpenceNFno factor from 2^66 to 2^67
2017-10-04Jocelyn LaroucheNF-PM1B1=597196, B2=5971960, E=6
2017-02-25Jocelyn LaroucheNF-PM1B1=298598, B2=2985980, E=6
2016-12-23Jocelyn LaroucheNF-PM1B1=207360
2016-09-22Jocelyn LaroucheNF-PM1B1=120000, B2=3993000
2016-09-21Jocelyn LaroucheNF-PM1B1=120000, B2=3630000
2016-09-17Jocelyn LaroucheNF-PM1B1=120000, B2=3300000, E=6
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
2012-02-15markrNFno 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
1999-05-23Johan SchrooyenC-LLBEBBD81E38837A87