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:
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MnStatusDetails
38746907No factors below 275
P-1
B1=510 000
B2=9 945 000
LL
StatusDateUserResidueShift
Bad2007-07-04C. Cooper / S. Boone962C36A4F782473121551224
Verified2016-01-31Mark Rose80C6A70A7F04DACE18727720
Bad2016-03-02ktony3099732E4067665419373587
Verified2016-03-02Amy Pond80C6A70A7F04DACE2572369
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2015-11-01-Anonymous-LL double-check0.0 % 2015-11-012015-12-11
2015-09-05-Anonymous-LL double-checkLL3.5 % 2015-09-212015-10-31
2015-07-26-Anonymous-LL double-checkLL0.0 % 2015-07-262015-09-04
2015-06-15-Anonymous-LL double-check0.0 % 2015-06-152015-07-25
2015-05-05-Anonymous-LL double-check0.0 % 2015-05-052015-06-14
2015-03-12-Anonymous-LL double-checkLL0.3 % 2015-03-252015-05-04
2015-01-30-Anonymous-LL double-check0.0 % 2015-01-302015-03-11
2014-12-20ANONYMOUSLL double-check0.0 % 2014-12-202015-01-29
History
DateUserTypeResult
2021-01-22-Anonymous-NFno factor from 2^74 to 2^75
2020-02-14-Anonymous-NFno factor from 2^73 to 2^74
2019-11-10Architects CubedNF-PM1B1=510000, B2=9945000, E=12
2019-10-18-Anonymous-NFno factor from 2^72 to 2^73
2019-05-26monstNFno factor from 2^71 to 2^72
2016-03-02Amy PondC-LL80C6A70A7F04DACE
2016-03-02ktonyC-LL3099732E40676654
2016-01-31Mark RoseC-LL80C6A70A7F04DACE
2014-12-07ChuckNFno factor from 2^70 to 2^71
2014-11-27Mark RoseNFno factor from 2^69 to 2^70
2013-08-24Le ComteNFno factor from 2^68 to 2^69
2007-07-04curtiscC-LL962C36A4F7824731
2007-05-28curtiscNF-PM1B1=620000
2006-08-14Team Prime RibNFno factor to 2^68
2003-09-29-Anonymous-NFno factor to 2^60
2003-09-21-Anonymous-NFno factor to 2^59