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
47492827
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 735000
B2 = 735000
LL
StatusDateUserResidueShiftSoftware
Bad2011-03-15curtisc48F48AF3E0D7C8DE24152327Windows Service,Prime95,v25.11,build 2
Verified2012-02-21MARK_DANA_ROCKMAN562205BC26C2199719669993Windows,Prime95,v25.11,build 2
Verified2016-06-14MadPoo 🙂562205BC26C2199736486684Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2018-01-06ktonyNFno factor TF: 72-73
2016-06-14MadPoo 🙂C-LL562205BC26C21997
2012-02-21MARK_DANA_ROCKMANC-LL562205BC26C21997
2011-12-12Craig MeyersNFno factor TF: 71-72
2011-11-30GregNFno factor TF: 70-71
2011-11-08David CampeauNFno factor TF: 69-70
2011-03-15curtiscC-LL48F48AF3E0D7C8DE
2010-08-19Jack The RipperNF-PM1B1=735000
2008-03-22mathemajikianNFno factor TF: 1-69