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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MnStatusDetails
43985531No factors below 273
P-1
B1=530 000
B2=14 972 500
LL
StatusDateUserResidueShift
Bad2010-05-14Jeff Ketchersid7F887CA103EF12C21479231
Verified2015-11-03Architects Cubed6BB65AAC8A51900822882604
Verified2016-09-03Mark Rose6BB65AAC8A519008977659
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2016-07-14-Anonymous-LL double-check0.0 % 2016-07-142016-08-23
2016-05-26-Anonymous-LL double-checkLL0.0 % 2016-06-032016-07-13
2016-04-15-Anonymous-LL double-check0.0 % 2016-04-152016-05-25
2016-03-05-Anonymous-LL double-check0.0 % 2016-03-052016-04-14
2016-01-21-Anonymous-LL double-checkLL5.3 % 2016-01-242016-03-04
History
DateUserTypeResult
2018-08-11-Anonymous-NFno factor from 2^72 to 2^73
2016-09-03Mark RoseC-LL6BB65AAC8A519008
2015-11-03Architects CubedC-LL6BB65AAC8A519008
2015-10-10-Anonymous-NFno factor from 2^71 to 2^72
2015-09-24VictordeHollanderNFno factor from 2^70 to 2^71
2015-04-26LaurVNFno factor from 2^69 to 2^70
2014-05-02VictordeHollanderNFno factor from 2^68 to 2^69
2010-05-14Jeff KetchersidC-LL7F887CA103EF12C2
2010-04-05Jeff KetchersidNF-PM1B1=530000, B2=14972500, E=6
2007-10-17tscNFno factor to 2^68