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

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MnStatusDetails
80385091Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 275
TF target 275
P-1
B1 = 705000
B2 = 14452500
LL
StatusDateUserResidueShift
Unverified2017-08-10-Anonymous-0A76B5C1F412AF__33236637
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-05-09ANONYMOUSLL double-check0.00 % 2025-05-09
History
DateUserTypeResult
2017-08-10-Anonymous-C-LL
0A76B5C1F412AF__
2017-01-08bamNF-PM1
B1=705000, B2=14452500
2016-10-13BdotNF
no factor from 2^74 to 2^75
2016-10-13BdotNF
no factor from 2^73 to 2^74
2015-12-20Mark RoseNF
no factor from 2^72 to 2^73
2015-12-20Mark RoseNF
no factor from 2^71 to 2^72
2014-02-22Ryan PropperNF
no factor from 2^70 to 2^71
2014-01-11SMoffatNF
no factor from 2^69 to 2^70
2013-09-05ManpowreNF
no factor from 2^68 to 2^69
2013-01-30SWL551NF
no factor from 2^72 to 2^73
2011-01-26firejugglerNF
no factor from 2^67 to 2^68
2011-01-26lindedNF
no factor from 2^66 to 2^67
2011-01-21-Anonymous-NF
no factor from 2^65 to 2^66
2010-12-08Architects CubedNF
no factor from 2^64 to 2^65