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:










MnStatusDetails
52540841Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 273
P-1
B1 = 615000
B2 = 16451250
LL
StatusDateUserResidueShift
Verified2011-10-26curtisc1145FC4498B9B62528865411
Verified2019-05-31d3zorg1145FC4498B9B62531955860
History
DateUserTypeResult
2019-05-31d3zorgC-LL
1145FC4498B9B625
2016-02-02AirSquirrelsNF
no factor from 2^72 to 2^73
2015-12-18-Anonymous-NF
no factor from 2^71 to 2^72
2015-08-14LaurVNF
no factor from 2^70 to 2^71
2014-10-26NesowaNF
no factor from 2^69 to 2^70
2011-10-26curtiscC-LL
1145FC4498B9B625
2010-09-28kmdNF
no factor from 2^68 to 2^69
2010-09-25kmdNF-PM1
B1=615000, B2=16451250
2009-06-26S485122NF
no factor from 2^67 to 2^68
2009-06-26S485122NF
no factor from 2^66 to 2^67
2009-06-26S485122NF
no factor from 2^65 to 2^66
2009-06-26S485122NF
no factor from 2^64 to 2^65
2008-11-17DerekNF
no factor to 2^64