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
45111893No factors below 273
P-1
B1=830 000
B2=21 000 000
LL
StatusDateUserResidueShift
Verified2010-06-18ANONYMOUS77B79377FC2CEED220630473
Bad2017-02-25Xolotl000000000000000031366351
Bad2017-02-25Xolotl00000000000000003606925
Verified2017-02-26MadPoo77B79377FC2CEED234735386
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2016-12-14-Anonymous-LL double-check0.0 % 2016-12-142017-01-23
2016-06-06-Anonymous-LL double-checkLL65.4 % 2016-11-142016-10-08
2016-03-27-Anonymous-LL double-check0.0 % 2016-03-272016-05-06
2016-01-25-Anonymous-LL double-check0.0 % 2016-01-252016-03-05
History
DateUserTypeResult
2019-02-21riccardo ubertiNF-PM1B1=830000, B2=21000000, E=12
2018-06-15Robin89NFno factor from 2^72 to 2^73
2017-02-26MadPooC-LL77B79377FC2CEED2
2017-02-25MadPooNF-PM1B1=190000, B2=3135000, E=6
2017-02-25XolotlP-LLM45111893 is prime!
2017-02-25XolotlP-LLM45111893 is prime!
2015-11-04Stef42NFno factor from 2^71 to 2^72
2015-11-03VictordeHollanderNFno factor from 2^70 to 2^71
2015-08-24Carsten KossendeyNFno factor from 2^69 to 2^70
2014-07-19BodgeNFno factor from 2^68 to 2^69
2010-06-18ANONYMOUSC-LL77B79377FC2CEED2
2009-01-19ANONYMOUSNF-PM1B1=765000
2007-12-03-Anonymous-NFno factor to 2^68
2007-01-161997rj7NFno factor to 2^63