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

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MnStatusDetails
100502683Factored
FactorDigitsBitsDate
198490675069264990987927372684.02020-10-21 01:37:24
P-1 factors
DateFactorB1B2
2020-10-21198490675069264990987927378400000
History
DateUserTypeResult
2020-10-21ky0urakuF-PM1
Factor: 19849067506926499098792737 / (P-1, B1=840000)
2020-07-11Alexander PavlicinNF
no factor from 2^75 to 2^76
2020-04-15riccardo ubertiNF
no factor from 2^74 to 2^75
2020-03-11el groccoNF
no factor from 2^73 to 2^74
2020-03-04el groccoNF
no factor from 2^72 to 2^73
2014-11-28Simon HarrisonNF
no factor from 2^71 to 2^72
2013-08-27RobishNF
no factor from 2^70 to 2^71
2013-08-25RobishNF
no factor from 2^69 to 2^70
2013-08-24RobishNF
no factor from 2^68 to 2^69
2013-08-23RobishNF
no factor from 2^67 to 2^68
2011-03-19Craig MeyersNF
no factor from 2^66 to 2^67
2011-02-16Craig MeyersNF
no factor from 2^65 to 2^66
2010-08-10Mr-PlonkNF
no factor from 2^64 to 2^65
2010-02-011997rj7NF
no factor from 2^63 to 2^64