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
73110677Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
TF
No factors below 277
TF target 274
P-1
B1 = 1502000
B2 = 947160270
LL
StatusDateUserResidueShift
Unverified2017-06-11andrea.biancalana97A521D4654E56__27380273
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-06-29AverageGatsbyLL double-checkLL24.73 % 2025-04-18
History
DateUserTypeResult
2025-04-29JurzalNF-PM1
B1=1502000, B2=947160270
2020-10-16-Anonymous-NF
no factor from 2^76 to 2^77
2020-10-09-Anonymous-NF
no factor from 2^75 to 2^76
2017-06-11andrea.biancalanaC-LL
97A521D4654E56__
2016-06-24-Anonymous-NF
no factor from 2^74 to 2^75
2014-08-21rx7350NF-PM1
B1=670000, B2=13902500
2014-08-17blipNF
no factor from 2^73 to 2^74
2014-08-16jondi_hanlucNF
no factor from 2^72 to 2^73
2014-08-16jondi_hanlucNF
no factor from 2^71 to 2^72
2013-04-19SMoffatNF
no factor from 2^70 to 2^71
2012-10-07Mike NeurohrNF
no factor from 2^69 to 2^70
2010-08-23RMAC9.5NF
no factor from 2^68 to 2^69
2010-06-11Dennis GloverNF
no factor from 2^67 to 2^68
2010-06-05-Anonymous-NF
no factor from 2^66 to 2^67
2010-06-05eon_blue_apocalypseNF
no factor from 2^65 to 2^66
2010-06-02lindedNF
no factor from 2^64 to 2^65
2008-06-28George WoltmanNF
no factor to 2^64