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:










MnStatusDetails
53693557Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 645000
B2 = 19672500
LL
StatusDateUserResidueShift
Bad2013-12-17George Woltman896968704FB837B65217118
Verified2018-05-31Christoph ZengerFB0630447DB89DB252474189
Verified2018-06-30ATHFB0630447DB89DB226858174
History
DateUserTypeResult
2018-06-30ATHC-LL
FB0630447DB89DB2
2018-06-16LaurVNF
no factor from 2^73 to 2^74
2018-05-31Christoph ZengerC-LL
FB0630447DB89DB2
2016-02-12AirSquirrelsNF
no factor from 2^72 to 2^73
2013-12-17George WoltmanC-LL
896968704FB837B6
2012-09-23Jerry HallettNF
no factor from 2^71 to 2^72
2011-08-02Tom DuellNF
no factor from 2^70 to 2^71
2011-06-04megavinkNF
no factor from 2^69 to 2^70
2011-02-20searchingforprimesNF
no factor from 2^68 to 2^69
2011-02-17David HruskaNF-PM1
B1=645000, B2=19672500, E=6
2009-05-03PerendieNF
no factor from 2^67 to 2^68
2009-03-02David BarleyNF
no factor from 2^66 to 2^67
2009-02-27Howard ChungNF
no factor from 2^65 to 2^66
2009-02-22GleanerCNF
no factor from 2^64 to 2^65
2008-10-14-Anonymous-NF
no factor to 2^64