Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
49408237TF
No factors below 276
TF target 273
P-1
B1 = 575000
B2 = 15237500
LL
StatusDateUserResidueShift
Verified2010-03-30St.Mary'sUnivWISELAB4EC7DBC8CEC6B91228268219
Verified2017-04-07-Anonymous-4EC7DBC8CEC6B91225090898
History
DateUserTypeResult
2020-12-23-Anonymous-NF
no factor from 2^75 to 2^76
2020-12-21-Anonymous-NF
no factor from 2^74 to 2^75
2019-09-13Jon PaceNF
no factor from 2^73 to 2^74
2017-09-14Sid & AndyNF
no factor from 2^72 to 2^73
2017-04-07-Anonymous-C-LL
4EC7DBC8CEC6B912
2015-11-24monstNF
no factor from 2^71 to 2^72
2015-11-01Mark RoseNF
no factor from 2^70 to 2^71
2015-08-20Gordon SpenceNF
no factor from 2^69 to 2^70
2010-03-30St.Mary'sUnivWISELABC-LL
4EC7DBC8CEC6B912
2010-01-28St.Mary'sUnivWISELABNF-PM1
B1=575000, B2=15237500, E=6
2008-06-03-Anonymous-NF
no factor to 2^64