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
38878207TF
No factors below 275
TF target 272
P-1
B1 = 205000
B2 = 3997500
LL
StatusDateUserResidueShift
Verified2008-06-14tscFB9C4FEA0966974C37993074
Verified2016-09-10AirSquirrelsFB9C4FEA0966974C22634879
History
DateUserTypeResult
2021-02-21-Anonymous-NF
no factor from 2^74 to 2^75
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-11-Anonymous-NF
no factor from 2^72 to 2^73
2019-05-31monstNF
no factor from 2^71 to 2^72
2016-09-10AirSquirrelsC-LL
FB9C4FEA0966974C
2014-12-11ktonyNF
no factor from 2^70 to 2^71
2014-11-30Andrew BNF
no factor from 2^69 to 2^70
2010-05-08Carsten KossendeyNF-PM1
B1=205000, B2=3997500, E=6