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
64338809Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 575000
B2 = 10206250
LL
StatusDateUserResidueShift
Verified2014-01-20ANONYMOUS6A796AC1F70CEB2E60205804
Verified2023-04-03Dmitriy Degtiarev6A796AC1F70CEB2E62870540
History
DateUserTypeResult
2023-04-03Dmitriy DegtiarevC-LL
6A796AC1F70CEB2E
2019-09-26Sid & AndyNF
no factor from 2^74 to 2^75
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2014-01-20ANONYMOUSC-LL
6A796AC1F70CEB2E
2013-12-04Kage RojiNF-PM1
B1=575000, B2=10206250
2013-09-29rduerrNF
no factor from 2^71 to 2^74
2012-06-08NBNF
no factor from 2^70 to 2^71
2012-04-01guyNF
no factor from 2^69 to 2^70
2009-12-18trifNF
no factor from 2^68 to 2^69
2009-10-16unconnectedNF
no factor from 2^67 to 2^68
2009-10-15Sturle SundeNF
no factor from 2^66 to 2^67
2009-10-13Torchwood InstituteNF
no factor from 2^65 to 2^66
2009-10-09-Anonymous-NF
no factor from 2^64 to 2^65
2009-03-08Sturle SundeNF
no factor from 2^63 to 2^64