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
71895041Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 277
TF target 274
P-1
B1 = 665000
B2 = 13965000
LL
StatusDateUserResidueShift
Verified2017-04-26Mihai Preda8A8F0DA37700F6AE8299365
Verified2024-08-10MARK_DANA_ROCKMAN8A8F0DA37700F6AE35356753
History
DateUserTypeResult
2024-08-10MARK_DANA_ROCKMANC-LL
8A8F0DA37700F6AE
2020-05-28-Anonymous-NF
no factor from 2^76 to 2^77
2020-05-26-Anonymous-NF
no factor from 2^75 to 2^76
2017-04-26Mihai PredaC-LL
8A8F0DA37700F6AE
2016-07-05Mark RoseNF
no factor from 2^74 to 2^75
2014-07-14TheJudgerNF-PM1
B1=665000, B2=13965000, E=12
2014-07-08kdgehmanNF
no factor from 2^73 to 2^74
2014-07-08kdgehmanNF
no factor from 2^72 to 2^73
2014-07-08kdgehmanNF
no factor from 2^71 to 2^72
2012-11-20Dr. DwayneNF
no factor from 2^70 to 2^71
2012-06-09ANONYMOUSNF
no factor to 2^70
2010-07-29-Anonymous-NF
no factor from 2^68 to 2^69
2010-07-23-Anonymous-NF
no factor from 2^67 to 2^68
2010-07-20-Anonymous-NF
no factor from 2^66 to 2^67
2010-07-10-Anonymous-NF
no factor from 2^65 to 2^66
2010-07-08-Anonymous-NF
no factor from 2^64 to 2^65
2008-10-14-Anonymous-NF
no factor to 2^64