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
61955111TF
No factors below 276
TF target 274
P-1
B1 = 595000
B2 = 12197500
LL
StatusDateUserResidueShift
Verified2014-08-01Amazon EC2CF90978E39DF96FC34896856
Verified2022-07-09Andrey MitrofanovCF90978E39DF96FC43330891
History
DateUserTypeResult
2022-07-09Andrey MitrofanovC-LL
CF90978E39DF96FC
2021-07-27GrunwalderGIMPNF
no factor from 2^75 to 2^76
2021-07-27GrunwalderGIMPNF
no factor from 2^74 to 2^75
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2014-08-01Amazon EC2C-LL
CF90978E39DF96FC
2014-06-22Jerry HallettNF
no factor from 2^73 to 2^74
2013-03-17NesowaNF-PM1
B1=595000, B2=12197500, E=12
2013-03-12BdotNF
no factor from 2^72 to 2^73
2013-02-20monstNF
no factor from 2^71 to 2^72
2013-02-12LaurVNF
no factor from 2^70 to 2^71
2011-11-26]mh[ VirtekNF
no factor from 2^69 to 2^70
2009-09-25S485122NF
no factor from 2^68 to 2^69
2009-09-25S485122NF
no factor from 2^67 to 2^68
2009-09-25S485122NF
no factor from 2^66 to 2^67
2009-09-25S485122NF
no factor from 2^65 to 2^66
2009-09-24S485122NF
no factor from 2^64 to 2^65
2009-04-29MarvNF
no factor from 2^63 to 2^64