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

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MnStatusDetails
59615207Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1196123934680173099272166.72012-12-15 15:40:11
P-1 factors
DateFactorB1B2
2012-12-1511961239346801730992756500011582500
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^1 to 2^63
2012-12-15NesowaF
Factor: 119612393468017309927
2012-11-13Norman LeyNF
no factor from 2^72 to 2^73
2012-11-13Norman LeyNF
no factor from 2^71 to 2^72
2011-11-26ValermmNF
no factor from 2^70 to 2^71
2011-10-27evatutinNF
no factor from 2^69 to 2^70
2009-12-19Helmut ZulusNF
no factor from 2^68 to 2^69
2009-01-20Sturle SundeNF
no factor from 2^67 to 2^68
2009-01-19Jon StrayerNF
no factor from 2^66 to 2^67
2009-01-19Jon StrayerNF
no factor from 2^65 to 2^66
2009-01-17Sturle SundeNF
no factor from 2^64 to 2^65
2008-03-14monstNF
no factor from 2^63 to 2^64