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

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MnStatusDetails
61256161Factored
FactorDigitsBitsDate
30754237113285534503347951490340927136117.92013-02-10 10:46:46
P-1 factors
DateFactorB1B2
2013-02-103075423711328553450334795149034092715800000
History
DateUserTypeResult
2022-03-29LordJuliusNF
no factor from 2^62 to 2^63
2013-02-10FrozenF-PM1
Factor: 307542371132855345033479514903409271
2013-02-02GrunwalderGIMPNF
no factor from 2^72 to 2^73
2013-02-02GrunwalderGIMPNF
no factor from 2^71 to 2^72
2012-08-26sikafarmi_rendering_farmNF
no factor from 2^70 to 2^71
2012-04-05-Anonymous-NF
no factor from 2^69 to 2^70
2009-08-02-Anonymous-NF
no factor from 2^68 to 2^69
2009-07-24Moe GrayNF
no factor from 2^67 to 2^68
2009-04-14Joel McBethNF
no factor from 2^66 to 2^67
2009-04-10InhumiererNF
no factor from 2^65 to 2^66
2009-04-05InhumiererNF
no factor from 2^64 to 2^65
2009-04-02AlejandroNF
no factor from 2^63 to 2^64