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

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Exponent Range:










MnStatusDetails
66446077Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 595000
B2 = 12048750
LL
StatusDateUserResidueShift
Verified2015-03-20Sternenlicht1D392B971C117B687591378
Verified2023-09-24Sergey Nosov1D392B971C117B6834404114
History
DateUserTypeResult
2023-09-24Sergey NosovC-LL
1D392B971C117B68
2015-03-20SternenlichtC-LL
1D392B971C117B68
2015-02-25Tim SorberaNF
no factor from 2^74 to 2^75
2014-06-29TheJudgerNF-PM1
B1=595000, B2=12048750, E=12
2014-06-22TheJudgerNF
no factor from 2^73 to 2^74
2014-04-15brilongNF
no factor from 2^72 to 2^73
2014-04-15brilongNF
no factor from 2^71 to 2^72
2012-09-11Clown_RoyalNF
no factor from 2^70 to 2^71
2012-02-13bestcronyNF
no factor from 2^69 to 2^70
2010-02-21arnaudNF
no factor from 2^68 to 2^69
2009-12-13korvaNF
no factor from 2^67 to 2^68
2009-12-09Scott I. ChaseNF
no factor from 2^66 to 2^67
2009-12-05David BarleyNF
no factor from 2^65 to 2^66
2009-11-30GiskardNF
no factor from 2^64 to 2^65
2009-04-051997rj7NF
no factor to 2^64