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
332221663
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 2695000
B2 = 45141250
LL
StatusDateUserResidueShiftSoftware
Unverified2017-01-12arnaud2A4F222B2EC730__172677414Windows 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-12Mark RoseNFno factor TF: 80-81
2023-02-12Mark RoseNFno factor TF: 79-80
2017-01-12arnaudC-LL2A4F222B2EC730__
2016-10-30arnaudNF-PM1B1=2695000, B2=45141250
2015-10-16NRNFno factor TF: 78-79
2015-10-16NRNFno factor TF: 77-78
2015-10-16NRNFno factor TF: 76-77
2011-08-08Princess ZerehNFno factor TF: 75-76
2011-01-01Princess ZerehNFno factor TF: 74-75
2010-06-21Team_InspectorNFno factor TF: 73-74
2010-06-15Team_InspectorNFno factor TF: 72-73
2009-10-16Team_InspectorNFno factor TF: 71-72
2009-10-15Team_InspectorNFno factor TF: 70-71
2009-08-01Team_InspectorNFno factor TF: 69-70
2008-12-13Team_InspectorNFno factor TF: 68-69