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

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MnStatusDetails
80961187Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
13393487551605101238435592580.12017-04-09 21:58:28
P-1 factors
DateFactorB1B2
2017-04-09133934875516051012384355969000013972500
History
DateUserTypeResult
2017-04-09Sergey NosovF-PM1
Factor: 1339348755160510123843559 / (P-1, B1=690000, B2=13972500, E=12)
2016-09-21Tim SorberaNF
no factor from 2^74 to 2^75
2016-09-21Tim SorberaNF
no factor from 2^73 to 2^74
2013-06-25Juergen KampmeierNF
no factor from 2^72 to 2^73
2013-06-25Juergen KampmeierNF
no factor from 2^71 to 2^72
2013-06-25Juergen KampmeierNF
no factor from 2^70 to 2^71
2013-01-31S00030NF
no factor from 2^69 to 2^70
2013-01-30rjbelansNF
no factor from 2^68 to 2^69
2013-01-26rjbelansNF
no factor from 2^67 to 2^68
2013-01-25rjbelansNF
no factor from 2^66 to 2^67
2011-02-05UngelovendeNF
no factor from 2^65 to 2^66
2010-12-11Architects CubedNF
no factor from 2^64 to 2^65