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
33603173
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 271
P-1
B1 = 213000
B2 = 152924310
LL
StatusDateUserResidueShiftSoftware
VerifiedDemetres S. Chondrorizos4DEFEB8C81477B2D20965595Windows,Prime95,v23,(aka WZ1)
Verified2014-09-09S000304DEFEB8C81477B2D25275932Linux 64-bit,Prime95,v28.5,build 1
History
DateUserTypeResult
2024-11-03tscNF-PM1B1=213000, B2=152924310
2024-05-21James HeinrichNFno factor TF: 68-69
2020-04-19-anonymous-NFno factor TF: 73-74
2019-12-26-anonymous-NFno factor TF: 71-72
2019-12-26-anonymous-NFno factor TF: 72-73
2016-03-27Mark RoseNFno factor TF: 67-68
2016-03-27Mark RoseNFno factor TF: 66-67
2016-03-27Mark RoseNFno factor TF: 64-66
2016-02-23Mark RoseNFno factor TF: 1-64
2014-09-09S00030C-LL4DEFEB8C81477B2D
2013-05-13kdgehmanNFno factor TF: 70-71
2013-05-13kdgehmanNFno factor TF: 69-70
2012-12-16Carsten KossendeyNFno factor TF: 68-69