Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
25196797No factors below 271
P-1
B1=255 000
B2=2 358 750
LL
StatusDateUserResidueShift
Bad2004-10-18Lobikov Vladimir5604DE9F0DFBADD33992578
Bad2005-02-23S2930245604DE9F0DFBADD33992578
Verified2010-09-29Eugene Starynets638F6B250B6620BB22144127
Verified2010-10-21Eugene Starynets638F6B250B6620BB6562173
Verified2015-05-29LaurV638F6B250B6620BB3399
Verified2017-09-20kkmrkkblmbrbk638F6B250B6620BB14172935
History
DateUserTypeResult
2017-09-20kkmrkkblmbrbkC-LL638F6B250B6620BB
2015-05-29LaurVC-LL638F6B250B6620BB
2015-03-27VictordeHollanderNFno factor from 2^70 to 2^71
2015-03-25VictordeHollanderNFno factor from 2^69 to 2^70
2015-03-19VictordeHollanderNFno factor from 2^68 to 2^69
2015-03-19VictordeHollanderNFno factor from 2^67 to 2^68
2010-10-21Eugene StarynetsC-LL638F6B250B6620BB
2010-09-29Eugene StarynetsC-LL638F6B250B6620BB
2005-02-23-Anonymous-NF-PM1B1=255000, B2=2358750
2005-02-23-Anonymous-C-LL5604DE9F0DFBADD3
2004-10-18-Anonymous-C-LL5604DE9F0DFBADD3
2004-07-26-Anonymous-NF-PM1B1=255000, B2=2358750
2004-05-11-Anonymous-NFno factor to 2^67
2003-12-23markrNFno factor to 2^62
2001-08-24MattNFno factor to 2^58
2001-08-12Net_ForceNFno factor to 2^56