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
47850613
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 560000
B2 = 14700000
LL
StatusDateUserResidueShiftSoftware
Verified2010-04-16Kyle Z Schmidt6BA6D53AE4C9B12826330977Windows,Prime95,v25.9,build 4
Verified2019-07-12Jan S.6BA6D53AE4C9B1283883475Windows 64-bit,Prime95,v29.8,build 3
History
DateUserTypeResult
2024-06-25GregNFno factor TF: 69-70
2019-09-19Jon PaceNFno factor TF: 73-74
2019-07-12Jan S.C-LL6BA6D53AE4C9B128
2018-01-04Mark RoseNFno factor TF: 72-73
2015-12-02AirSquirrelsNFno factor TF: 71-72
2015-12-02AirSquirrelsNFno factor TF: 70-71
2015-08-29Judge HaleNFno factor TF: 69-70
2010-04-16Kyle Z SchmidtC-LL6BA6D53AE4C9B128
2009-10-16Kyle Z SchmidtNF-PM1B1=560000, B2=14700000
2008-05-10Sid & AndyNFno factor TF: 1-69