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
47178749
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 565000
B2 = 15961250
LL
StatusDateUserResidueShiftSoftware
Verified2011-06-14Kyle Z Schmidt83BDC1D8A605460734429586Windows 64-bit,Prime95,v26.5,build 5
Verified2018-12-22Will Hockensmith83BDC1D8A605460726519210Linux 64-bit,Prime95,v29.4,build 8
History
DateUserTypeResult
2024-05-29ChuckNFno factor TF: 68-69
2019-04-11Sid & AndyNFno factor TF: 73-74
2018-12-22Will HockensmithC-LL83BDC1D8A6054607
2017-11-26TheJudgerNFno factor TF: 72-73
2015-12-04-anonymous-NFno factor TF: 71-72
2015-09-18Architects CubedNFno factor TF: 70-71
2015-08-31Mark RoseNFno factor TF: 69-70
2013-03-07Carsten KossendeyNFno factor TF: 68-69
2011-06-14Kyle Z SchmidtC-LL83BDC1D8A6054607
2011-02-24Kyle Z SchmidtNF-PM1B1=565000, B2=15961250, E=6
2008-03-05JC_HerlesNFno factor TF: 1-68