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

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MnStatusDetails
71099111Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
221175686250335083976302649272994.22014-08-09 13:22:09
8028507628858056740221519592890332106.02014-08-09 13:22:09
P-1 factors
DateFactorB1B2
2014-08-09177571068437873122761998648494054307118036920559891174648508165000013325000
History
DateUserTypeResult
2014-08-09firereddF-PM1
Factor: 1775710684378731227619986484940543071180369205598911746485081
2014-05-29ChuckNF
no factor from 2^73 to 2^74
2014-05-28ChuckNF
no factor from 2^72 to 2^73
2014-05-28ChuckNF
no factor from 2^71 to 2^72
2013-07-24willmoreNF
no factor from 2^70 to 2^71
2013-05-11SMoffatNF
no factor from 2^69 to 2^70
2010-10-04chargerNF
no factor from 2^68 to 2^69
2010-09-23chargerNF
no factor from 2^67 to 2^68
2010-09-09GrunwalderGIMPNF
no factor from 2^66 to 2^67
2010-03-12arnaudNF
no factor from 2^65 to 2^66
2010-03-07Sturle SundeNF
no factor from 2^64 to 2^65
2008-10-19Wojciech FlorekNF
no factor to 2^64