Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
66186499
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 640000
B2 = 13440000
LL
StatusDateUserResidueShiftSoftware
Verified2015-03-02Kyle Z Schmidt9AB30DB09D9E128220282726Windows 64-bit,Prime95,v28.5,build 2
Verified2023-09-25TAMUC-ComputerScience9AB30DB09D9E128233446014Windows 64-bit,Prime95,v29.4,build 8
History
DateUserTypeResult
2023-09-25TAMUC-ComputerScienceC-LL9AB30DB09D9E1282
2021-10-13AerowNFno factor TF: 74-75
2015-03-02Kyle Z SchmidtC-LL9AB30DB09D9E1282
2014-06-22TheJudgerNFno factor TF: 73-74
2014-06-08TheJudgerNF-PM1B1=640000, B2=13440000, E=6
2014-03-25Tim SorberaNFno factor TF: 72-73
2014-03-22SWL551NFno factor TF: 71-72
2012-07-02CreweNetNFno factor TF: 70-71
2012-02-06Jens PedersenNFno factor TF: 69-70
2010-06-01paulieNFno factor TF: 68-69
2010-05-26Aleksey OsadchiyNFno factor TF: 67-68
2010-05-20ANONYMOUSNFno factor TF: 66-67
2010-05-18garoNFno factor TF: 65-66
2009-11-14Sturle SundeNFno factor TF: 64-65
2009-03-221997rj7NFno factor TF: 1-64
2004-02-14Team Prime RibNFno factor TF: 1-60