Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
42590731Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
216057851515164417779692374.22018-02-10 12:52:40
LL
StatusDateUserResidueShift
Verified (Factored)2008-09-16C. Cooper / S. BooneF6F1D2AEC3F00EA520005395
P-1 factors
DateFactorB1B2
2018-02-1021605785151516441777969120000030000000
History
DateUserTypeResult
2018-02-10mikrF-PM1
Factor: 21605785151516441777969 / (P-1, B1=1200000, B2=30000000, E=12)
2015-08-30-Anonymous-NF
no factor from 2^71 to 2^72
2015-03-27David CampeauNF
no factor from 2^70 to 2^71
2015-02-18chalsallNF
no factor from 2^69 to 2^70
2014-03-08LaurVNF
no factor from 2^68 to 2^69