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

PrimeNet Exponent Status

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MnStatusDetails
43714607No factors below 273
P-1
B1=830 000
B2=21 000 000
LL
StatusDateUserResidueShift
Verified2011-05-26LaurV40995A54E7494D6727773763
Bad2017-02-26Xolotl00000000000000001845183
Bad2017-02-26Xolotl000000000000000025479375
Verified2017-03-03MadPoo40995A54E7494D67889601
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2016-07-02-Anonymous-LL double-check0.0 % 2016-07-022016-08-11
2016-05-21-Anonymous-LL double-check0.0 % 2016-05-222016-07-01
2016-04-10-Anonymous-LL double-checkLL0.0 % 2016-04-102016-05-20
2016-02-29-Anonymous-LL double-check0.0 % 2016-02-292016-04-09
2016-01-19-Anonymous-LL double-check0.0 % 2016-01-192016-02-28
History
DateUserTypeResult
2018-08-05-Anonymous-NFno factor from 2^72 to 2^73
2018-06-23riccardo ubertiNF-PM1B1=830000, B2=21000000, E=12
2017-03-03MadPooC-LL40995A54E7494D67
2017-02-26XolotlC-LL0000000000000000
2017-02-26XolotlC-LL0000000000000000
2015-04-18LaurVNFno factor from 2^71 to 2^72
2015-04-18LaurVNFno factor from 2^70 to 2^71
2015-04-06LaurVNFno factor from 2^69 to 2^70
2014-04-21AxelssonNFno factor from 2^68 to 2^69
2011-05-26LaurVC-LL40995A54E7494D67
2009-12-21Branislav CapoNF-PM1B1=515000, B2=11973750
2007-09-13tmorrowNFno factor to 2^68