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

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MnStatusDetails
118877449Factored
FactorDigitsBitsDate
28191918963666664325313832581.22023-08-14 11:17:11
P-1 factors
DateFactorB1B2
2023-08-14281919189636666643253138358200025950000
History
DateUserTypeResult
2023-08-14ky0urakuF-PM1
Factor: 2819191896366666432531383 / (P-1, B1=582000, B2=25950000)
2022-04-15laxeyeNF
no factor from 2^76 to 2^77
2021-07-07TheJudgerNF
no factor from 2^75 to 2^76
2021-07-07TheJudgerNF
no factor from 2^74 to 2^75
2019-05-28Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2017-12-12snme2pm1NF
no factor from 2^72 to 2^73
2015-04-25caddrNF
no factor from 2^71 to 2^72
2015-03-08snme2pm1NF
no factor from 2^70 to 2^71
2014-10-05snme2pm1NF
no factor from 2^69 to 2^70
2014-10-05snme2pm1NF
no factor from 2^68 to 2^69
2014-07-10snme2pm1NF
no factor from 2^67 to 2^68
2014-06-19snme2pm1NF
no factor from 2^66 to 2^67
2012-07-22RichardNF
no factor from 2^65 to 2^66
2010-10-16RichardNF
no factor from 2^64 to 2^65
2010-05-14sasaki3NF
no factor from 2^63 to 2^64