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
60872387Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 625000
B2 = 16250000
LL
StatusDateUserResidueShift
Verified2013-04-06Amazon EC2C03BF2AC937E126558291014
Verified2022-02-15Andrew_andC03BF2AC937E126553125498
History
DateUserTypeResult
2022-02-15Andrew_andC-LL
C03BF2AC937E1265
2016-03-07AirSquirrelsNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2013-04-06Amazon EC2C-LL
C03BF2AC937E1265
2012-12-24kdgehmanNF-PM1
B1=625000, B2=16250000, E=6
2012-12-05kdgehmanNF
no factor from 2^72 to 2^73
2012-12-05kdgehmanNF
no factor from 2^71 to 2^72
2012-12-05kdgehmanNF
no factor from 2^70 to 2^71
2011-07-26David CampeauNF
no factor from 2^69 to 2^70
2009-07-03Kelly LowderNF
no factor from 2^68 to 2^69
2009-02-04jfarekNF
no factor from 2^67 to 2^68
2009-02-02James HintzNF
no factor from 2^66 to 2^67
2009-01-30James HintzNF
no factor from 2^65 to 2^66
2009-01-26ANONYMOUSNF
no factor from 2^64 to 2^65
2009-01-26-Anonymous-NF
no factor from 2^63 to 2^64