Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
80003831Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 276
TF target 275
P-1
B1 = 700000
B2 = 14175000
LL
StatusDateUserResidueShift
Unverified2017-05-30Evgeniy ZavialovAD4A9D6ED22ADC__10224678
History
DateUserTypeResult
2024-08-14cramsey87NF
no factor from 2^75 to 2^76
2017-05-30Evgeniy ZavialovC-LL
AD4A9D6ED22ADC__
2016-12-09NesowaNF-PM1
B1=700000, B2=14175000, E=6
2016-08-07AirSquirrelsNF
no factor from 2^74 to 2^75
2015-11-06mikrNF
no factor from 2^73 to 2^74
2015-11-06mikrNF
no factor from 2^72 to 2^73
2015-11-06mikrNF
no factor from 2^71 to 2^72
2013-07-12Per JessenNF
no factor from 2^70 to 2^71
2011-03-02silky_smoothNF
no factor from 2^69 to 2^70
2011-02-17Per JessenNF
no factor from 2^68 to 2^69
2011-02-10KarlMJNF
no factor from 2^67 to 2^68
2011-02-09KarlMJNF
no factor from 2^66 to 2^67