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
40197881TF
No factors below 276
TF target 272
P-1
B1 = 480000
B2 = 12600000
LL
StatusDateUserResidueShift
Verified2010-04-12Chun sung sooB46244F3AC112BC922835420
Verified2017-06-14Evgeniy ZavialovB46244F3AC112BC925172798
History
DateUserTypeResult
2021-03-11-Anonymous-NF
no factor from 2^75 to 2^76
2021-03-08-Anonymous-NF
no factor from 2^74 to 2^75
2020-01-25-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-05-Anonymous-NF
no factor from 2^72 to 2^73
2017-06-14Evgeniy ZavialovC-LL
B46244F3AC112BC9
2015-01-22tigreroarsNF
no factor from 2^71 to 2^72
2014-12-17ChuckNF
no factor from 2^70 to 2^71
2014-12-17ChuckNF
no factor from 2^69 to 2^70
2013-10-28Carsten KossendeyNF
no factor from 2^68 to 2^69
2010-04-12Chun sung sooC-LL
B46244F3AC112BC9
2009-11-05Chun sung sooNF-PM1
B1=480000, B2=12600000, E=6