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

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MnStatusDetails
118687229Factored
FactorDigitsBitsDate
202887703529743614030554183512994.02023-08-09 02:07:26
P-1 factors
DateFactorB1B2
2023-08-092028877035297436140305541835155000023284000
History
DateUserTypeResult
2023-08-09ky0urakuF-PM1
Factor: 20288770352974361403055418351 / (P-1, B1=550000, B2=23284000)
2022-12-04tottenhoffNF
no factor from 2^77 to 2^78
2022-05-11TheJudgerNF
no factor from 2^76 to 2^77
2021-07-04TheJudgerNF
no factor from 2^75 to 2^76
2021-07-04TheJudgerNF
no factor from 2^74 to 2^75
2021-05-24ViliamFNF
no factor from 2^71 to 2^72
2019-06-22Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2017-07-15snme2pm1NF
no factor from 2^72 to 2^73
2015-06-04Josh FamestadNF
no factor from 2^71 to 2^72
2015-02-07snme2pm1NF
no factor from 2^70 to 2^71
2014-08-23snme2pm1NF
no factor from 2^69 to 2^70
2014-08-01snme2pm1NF
no factor from 2^68 to 2^69
2014-07-08snme2pm1NF
no factor from 2^67 to 2^68
2014-06-02snme2pm1NF
no factor from 2^66 to 2^67
2012-07-17Mr-PlonkNF
no factor from 2^65 to 2^66
2010-12-27sasaki3NF
no factor from 2^64 to 2^65
2010-05-14Waldir Walter JuniorNF
no factor from 2^63 to 2^64