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

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Exponent Range:










MnStatusDetails
65683771Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 595000
B2 = 11900000
LL
StatusDateUserResidueShift
Verified2013-10-06curtisc1BBB7C67B7B4CDB861965851
Verified2023-01-04Ryan Propper1BBB7C67B7B4CDB859167226
History
DateUserTypeResult
2023-01-04Ryan PropperC-LL
1BBB7C67B7B4CDB8
2022-03-26tottenhoffNF
no factor from 2^74 to 2^75
2016-03-29Mark RoseNF
no factor from 2^60 to 2^63
2013-10-06curtiscC-LL
1BBB7C67B7B4CDB8
2013-07-31Abdullah BaigNF-PM1
B1=595000, B2=11900000
2013-07-26Jerry HallettNF
no factor from 2^73 to 2^74
2013-06-01TheJudgerNF
no factor from 2^72 to 2^73
2013-06-01TheJudgerNF
no factor from 2^71 to 2^72
2013-06-01TheJudgerNF
no factor from 2^70 to 2^71
2012-01-27CLICHENF
no factor from 2^69 to 2^70
2009-10-20ANONYMOUSNF
no factor from 2^68 to 2^69
2009-04-01nailsssNF
no factor from 2^67 to 2^68
2009-03-26SuppNF
no factor from 2^66 to 2^67
2009-03-24usmfunNF
no factor from 2^65 to 2^66
2009-03-23oodairaNF
no factor from 2^64 to 2^65
2009-01-20Wojciech FlorekNF
no factor from 2^63 to 2^64