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
55891183TF
No factors below 273
TF target 273
P-1
B1 = 560000
B2 = 12180000
LL
StatusDateUserResidueShift
Bad2013-06-29-Anonymous-9AE81492288C2C1A1336159
Verified2013-08-20Holy Spirit97EA3E31FFF5C40115632649
Verified2016-09-22AirSquirrels97EA3E31FFF5C401693934
History
DateUserTypeResult
2016-09-22AirSquirrelsC-LL
97EA3E31FFF5C401
2016-02-23Mark RoseNF
no factor from 2^58 to 2^63
2015-07-28Mark RoseNF
no factor from 2^72 to 2^73
2013-08-20Holy SpiritC-LL
97EA3E31FFF5C401
2013-06-29-Anonymous-C-LL
9AE81492288C2C1A
2012-08-05TheJudgerNF-PM1
B1=560000, B2=12180000, E=12
2011-09-23phoenicisNF
no factor from 2^71 to 2^72
2011-09-23phoenicisNF
no factor from 2^70 to 2^71
2011-04-07kdgehmanNF
no factor from 2^69 to 2^70
2011-04-07kdgehmanNF
no factor from 2^68 to 2^69
2009-07-24subgeniusNF
no factor from 2^67 to 2^68
2009-03-29ANONYMOUSNF
no factor from 2^66 to 2^67
2009-03-28Sturle SundeNF
no factor from 2^65 to 2^66
2009-03-25Sturle SundeNF
no factor from 2^64 to 2^65
2008-12-241997rj7NF
no factor from 2^63 to 2^64