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
73056031Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 675000
B2 = 14006250
LL
StatusDateUserResidueShift
Verified2017-02-01curtisc9BC929B9FC5411C541483877
Verified2023-10-11Mirra9BC929B9FC5411C540802390
History
DateUserTypeResult
2024-08-11Jarod McClintockNF
no factor from 2^74 to 2^75
2023-10-11MirraC-LL
9BC929B9FC5411C5
2017-02-01curtiscC-LL
9BC929B9FC5411C5
2016-05-03Judge HaleNF
no factor from 2^74 to 2^75
2014-08-23NesowaNF-PM1
B1=675000, B2=14006250, E=12
2014-08-13Bill StaffenNF
no factor from 2^71 to 2^74
2013-08-26processinfoNF
no factor from 2^70 to 2^71
2012-10-12ANONYMOUSNF
no factor from 2^69 to 2^70
2010-06-21GrunwalderGIMPNF
no factor from 2^68 to 2^69
2010-06-20SunfishNF
no factor from 2^67 to 2^68
2010-06-13SunfishNF
no factor from 2^66 to 2^67
2010-06-06Helmut ZulusNF
no factor from 2^65 to 2^66
2010-06-01ANONYMOUSNF
no factor from 2^64 to 2^65
2008-06-28George WoltmanNF
no factor to 2^64