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

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MnStatusDetails
332220029Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 281
TF target 281
P-1
B1 = 2855000
B2 = 74230000
LL
StatusDateUserResidueShift
Unverified2017-10-10IcarusE973C2D86D22C9__109005967
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-11-16-Anonymous-LL double-check0.00 % 2024-11-16
History
DateUserTypeResult
2023-10-18James HeinrichNF
no factor from 2^67 to 2^68
2023-02-12Mark RoseNF
no factor from 2^80 to 2^81
2023-02-12Mark RoseNF
no factor from 2^79 to 2^80
2017-10-10IcarusC-LL
E973C2D86D22C9__
2016-11-21IcarusNF-PM1
B1=2855000, B2=74230000, E=12
2015-10-14NRNF
no factor from 2^78 to 2^79
2015-10-14NRNF
no factor from 2^77 to 2^78
2015-10-14NRNF
no factor from 2^76 to 2^77
2011-04-01Christian GeschwentnerNF
no factor from 2^75 to 2^76
2009-07-13ANONYMOUSNF
no factor from 2^74 to 2^75
2009-07-06ANONYMOUSNF
no factor from 2^73 to 2^74
2009-07-02ANONYMOUSNF
no factor from 2^72 to 2^73
2008-12-31Mark FijiNF
no factor from 2^71 to 2^72
2008-12-26Mark FijiNF
no factor from 2^70 to 2^71
2008-12-18Mark FijiNF
no factor from 2^69 to 2^70
2008-12-10Team_InspectorNF
no factor from 2^68 to 2^69