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
33865883
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 271
P-1
B1 = 400000
B2 = 9000000
LL
StatusDateUserResidueShiftSoftware
Verified2004-07-26Bushmen4C13E77D2CC0452725345996Windows,Prime95,v23,(aka WZ1)
Verified2015-02-11Dubslow4C13E77D2CC045271509681Linux 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2020-02-28-anonymous-NFno factor TF: 73-74
2019-11-17-anonymous-NFno factor TF: 71-72
2019-11-17-anonymous-NFno factor TF: 72-73
2015-02-11DubslowC-LL4C13E77D2CC04527
2013-02-05SWL551NFno factor TF: 70-71
2013-02-05SWL551NFno factor TF: 69-70
2012-11-25krackerNFno factor TF: 68-69
2004-07-26-anonymous-C-LL4C13E77D2CC04527
2004-04-20-anonymous-NF-PM1B1=400000, B2=9000000
2004-04-09-anonymous-NFno factor TF: 1-68