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
25316849
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 270
P-1
B1 = 5000000
B2 = 140000000
LL
StatusDateUserResidueShiftSoftware
Verified2006-04-28C. Cooper / S. BooneD5AA120551861A1F19645939Windows,Prime95,v23,NT service,(aka WZ5)
Verified2012-05-02DubslowD5AA120551861A1F10298977Linux 64-bit,Prime95,v27.6,build 3
History
DateUserTypeResult
2022-02-01Anton RepkoNF-PM1B1=5000000, B2=140000000
2021-10-17TheJudgerNFno factor TF: 74-75
2021-10-01TheJudgerNFno factor TF: 73-74
2021-08-28TheJudgerNFno factor TF: 72-73
2021-08-28TheJudgerNFno factor TF: 71-72
2021-06-10mikrNFno factor TF: 70-71
2017-03-19ramgeisNFno factor TF: 69-70
2012-05-02DubslowC-LLD5AA120551861A1F
2012-04-19bcp19NFno factor TF: 67-69
2011-11-02Carsten KossendeyNFno factor TF: 67-68
2006-04-28curtiscC-LLD5AA120551861A1F
2005-10-04-anonymous-NF-PM1B1=305000, B2=7472500
2005-04-02Doug MilesNFno factor TF: 1-67
2004-04-29Doug MilesNFno factor TF: 1-67
2004-02-07markrNFno factor TF: 1-62
2001-08-24MattNFno factor TF: 1-58
2001-08-12Net_ForceNFno factor TF: 1-56