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
56106283Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
279267573921793137117592374.62023-03-22 03:19:57
LL
StatusDateUserResidueShift
Verified (Factored)2013-07-01Amazon EC256529CB8C076244443145585
Verified (Factored)2021-06-23RichD056529CB8C076244448319739
History
DateUserTypeResult
2023-03-22Smok_bmv F
Factor: 27926757392179313711759 / TF: 74-75*
2021-06-23RichD0C-LL
56529CB8C0762444
2018-09-26ChuckNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^60 to 2^63
2016-01-22-Anonymous-NF
no factor from 2^72 to 2^73
2013-07-01Amazon EC2C-LL
56529CB8C0762444
2012-06-19Henk DeReeNF-PM1
B1=545000, B2=10627500
2012-05-10bcp19NF
no factor from 2^71 to 2^72
2011-06-10shaugeNF
no factor from 2^70 to 2^71
2011-06-10shaugeNF
no factor from 2^69 to 2^70
2011-04-13dslNF
no factor from 2^68 to 2^69
2009-05-19jccothamNF
no factor from 2^67 to 2^68
2008-07-02Squeeky_SquirrelNF
no factor from 2^66 to 2^67
2008-06-27Squeeky_SquirrelNF
no factor from 2^65 to 2^66
2008-06-23Squeeky_SquirrelNF
no factor from 2^64 to 2^65
2008-06-21Sturle SundeNF
no factor from 2^63 to 2^64