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
34938083
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 271
P-1
B1 = 670000
B2 = 17500000
LL
StatusDateUserResidueShiftSoftware
Bad2005-12-12Ryan Malayter10A20CB108D12D9F23433066Windows,Prime95,v24 final,(aka Wc1)
Bad2006-08-25David Harmor61589923E68A096515029917Windows,Prime95,v24 final,(aka Wc1)
Verified2015-09-15MadPoo 🙂3ADBA6601D87967133562128Windows 64-bit,Prime95,v26,(aka We4)
Verified2015-10-27riccardo uberti3ADBA6601D87967124860048Linux 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2020-12-12-anonymous-NFno factor TF: 74-75
2020-03-18-anonymous-NFno factor TF: 73-74
2019-10-19-anonymous-NFno factor TF: 72-73
2015-10-27riccardo ubertiC-LL3ADBA6601D879671
2015-09-18Bruno VictalNFno factor TF: 71-72
2015-09-16riccardo ubertiNF-PM1B1=670000, B2=17500000, E=12
2015-09-15MadPoo 🙂C-LL3ADBA6601D879671
2014-04-28Gordon SpenceNFno factor TF: 70-71
2014-04-28Gordon SpenceNFno factor TF: 69-70
2012-02-15Craig MeyersNFno factor TF: 67-69
2006-08-25-anonymous-C-LL61589923E68A0965
2005-12-12Ryan MalayterC-LL10A20CB108D12D9F
2005-11-27Ryan MalayterNF-PM1B1=390000, B2=4680000
2005-10-04Team Prime RibNFno factor TF: 1-67