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
332195477
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 2990000
B2 = 76992500
LL
StatusDateUserResidueShiftSoftware
Unverified2015-10-17Stephen MakoninB71F6AABFF1C07__89781130Mac OS X 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-08Mark RoseNFno factor TF: 80-81
2017-02-12Random GPUsNFno factor TF: 79-80
2015-10-17Stephen MakoninC-LLB71F6AABFF1C07__
2015-06-16Stephen MakoninNF-PM1B1=2990000, B2=76992500, E=4
2011-05-01amphoriaNFno factor TF: 78-79
2011-05-01amphoriaNFno factor TF: 77-78
2011-05-01amphoriaNFno factor TF: 76-77
2011-05-01amphoriaNFno factor TF: 75-76
2009-12-19SunfishNFno factor TF: 74-75
2009-12-13SunfishNFno factor TF: 73-74
2009-12-10SunfishNFno factor TF: 72-73
2008-12-11Team_InspectorNFno factor TF: 71-72
2008-12-10Team_InspectorNFno factor TF: 70-71
2008-10-22Team_InspectorNFno factor TF: 69-70
2008-10-21Team_InspectorNFno factor TF: 68-69