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
3380947No factors below 268
P-1
B1=4 000 000
B2=150 000 000
LL
StatusDateUserResidueShift
VerifiedRichard Rankin2026346D62C0D3A80
Verified1999-12-30Henrik Oluf Olsen2026346D62C0D3A83253562
History
DateUserTypeResult
2021-04-21mikrNF-PM1B1=4000000, B2=150000000, E=12
2018-10-15TJAOINFno factor from 2^67 to 2^68
2017-03-10Gordon SpenceNFno factor from 2^66 to 2^67
2016-02-23Mark RoseNFno factor from 2^62 to 2^63
2016-02-23Mark RoseNFno factor from 2^1 to 2^60
2015-05-29Squeeky_SquirrelNF-PM1B1=230000, B2=6727500, E=12
2015-04-01Gordon SpenceNFno factor from 2^65 to 2^66
2015-02-15VictordeHollanderNFno factor from 2^64 to 2^65
2015-02-15VictordeHollanderNFno factor from 2^63 to 2^64
2014-10-12Jocelyn LaroucheNF-PM1B1=97968
2014-06-26-Anonymous-NF-PM1B1=78984
2012-11-15GrunwalderGIMPNFno factor from 2^1 to 2^63
2011-10-20harleeNF-PM1B1=60000, B2=930000, E=6
2011-08-25Grant McCrackenNFno factor from 2^61 to 2^62
2009-08-15Carsten KossendeyNF-PM1B1=15000, B2=206250
2009-03-26S485122NFno factor from 2^60 to 2^61
1999-12-30-Anonymous-C-LL2026346D62C0D3A8