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

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MnStatusDetails
71184691Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 274
P-1
B1 = 1055000
B2 = 30595000
LL
StatusDateUserResidueShift
Unverified2017-02-10jbindl0B2059CF5BECBE__13298468
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-05-21denis cazorLL double-checkLL74.41 % 2024-12-21
History
DateUserTypeResult
2017-02-10jbindlC-LL
0B2059CF5BECBE__
2016-08-05-Anonymous-NF
no factor from 2^74 to 2^75
2014-12-26owftheevilNF-PM1
B1=1055000, B2=30595000, e=6
2014-12-14TheJudgerNF
no factor from 2^73 to 2^74
2014-12-14TheJudgerNF
no factor from 2^72 to 2^73
2014-10-24Stef42NF
no factor from 2^71 to 2^72
2014-04-23HBendtzNF
no factor from 2^70 to 2^71
2013-04-10SMoffatNF
no factor from 2^69 to 2^70
2010-08-15Hierogamous EnterprisesNF
no factor from 2^68 to 2^69
2010-05-24KivNF
no factor from 2^67 to 2^68
2010-05-23ANONYMOUSNF
no factor from 2^66 to 2^67
2010-05-18unconnectedNF
no factor from 2^65 to 2^66
2010-05-17dabunniesNF
no factor from 2^64 to 2^65
2008-10-21Wojciech FlorekNF
no factor to 2^64