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

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MnStatusDetails
56921869Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2809136224895224272472167.92012-07-26 14:22:54
P-1 factors
DateFactorB1B2
2012-07-2628091362248952242724757000011970000
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^62 to 2^63
2012-07-26PPed72F
Factor: 280913622489522427247
2012-07-16Sebastian HornbostelNF
no factor from 2^71 to 2^72
2011-09-14CreweNetNF
no factor from 2^70 to 2^71
2011-06-12-Anonymous-NF
no factor from 2^69 to 2^70
2011-04-19Paul LeylandNF
no factor from 2^68 to 2^69
2010-03-31sannerud.comNF
no factor from 2^67 to 2^68
2008-08-26Sturle SundeNF
no factor from 2^66 to 2^67
2008-08-25Sturle SundeNF
no factor from 2^65 to 2^66
2008-08-25Sturle SundeNF
no factor from 2^64 to 2^65
2008-08-24Sturle SundeNF
no factor from 2^63 to 2^64