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
2273041No factors below 269
P-1
B1=4 400 000
B2=422 400 000
LL
StatusDateUserResidueShift
VerifiedWayne Scott81FB52FA8334B69C0
Verified1999-03-15I-Gene Leong81FB52FA8334B69C1653055
Verified2018-04-26kkmrkkblmbrbk81FB52FA8334B69C700725
History
DateUserTypeResult
2021-06-17TJAOINFno factor from 2^68 to 2^69
2021-06-05happy5214NF-PM1B1=4400000
2021-04-21happy5214NF-PM1B1=4400000, B2=422400000
2021-04-21happy5214NF-PM1B1=4400000
2021-04-21happy5214NF-PP1Start=2/7, B1=1000000, B2=62000000
2019-04-29TJAOINFno factor from 2^67 to 2^68
2018-04-26kkmrkkblmbrbkC-LL81FB52FA8334B69C
2017-10-04Jocelyn LaroucheNF-PM1B1=544320, B2=5443200, E=6
2017-01-15Gordon SpenceNFno factor from 2^66 to 2^67
2016-03-06Jocelyn LaroucheNF-PM1B1=272160, B2=4898880, E=6
2016-02-23Mark RoseNFno factor from 2^1 to 2^60
2015-10-31ramgeisNFno factor from 2^65 to 2^66
2015-03-10VictordeHollanderNFno factor from 2^64 to 2^65
2015-03-10VictordeHollanderNFno factor from 2^63 to 2^64
2014-09-15-Anonymous-NF-PM1B1=133237
2013-01-23dbaughNFno factor from 2^62 to 2^63
2012-05-06Sebastian HornbostelNFno factor from 2^61 to 2^62
2011-01-02markrNF-PM1B1=105000, B2=2152500, E=6
2010-11-13Jocelyn LaroucheNF-PM1B1=30000
2010-11-06Jocelyn LaroucheNF-PM1B1=15000
2009-01-10Sturle SundeNFno factor from 2^60 to 2^61
2003-04-27-Anonymous-NF-PM1B1=2048, B2=204800, E=12
1999-03-15-Anonymous-C-LL81FB52FA8334B69C