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
36271993Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 271
P-1
B1 = 355000
B2 = 7011250
LL
StatusDateUserResidueShift
Verified2006-11-28fed-22D11589582F66ADF11225697
Verified2015-10-22Ari Mäkinen2D11589582F66ADF2790621
History
DateUserTypeResult
2024-05-28LaurVNF
no factor from 2^68 to 2^69
2021-01-02-Anonymous-NF
no factor from 2^74 to 2^75
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-25-Anonymous-NF
no factor from 2^72 to 2^73
2019-10-25-Anonymous-NF
no factor from 2^71 to 2^72
2015-10-22Ari MäkinenC-LL
2D11589582F66ADF
2015-03-31Sid & AndyNF-PM1
B1=355000, B2=7011250, E=12
2014-08-27kdgehmanNF
no factor from 2^70 to 2^71
2014-08-27kdgehmanNF
no factor from 2^69 to 2^70
2013-04-29Carsten KossendeyNF
no factor from 2^68 to 2^69
2012-04-14Serge BatalovNF
no factor from 2^67 to 2^68
2010-02-06Carsten KossendeyNF-PM1
B1=220000, B2=5060000, E=6