Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
428001047Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
195077632353319708637512374.02019-07-16 16:45:25
History
DateUserTypeResult
2024-05-19Jarod McClintockNF
no factor from 2^68 to 2^69
2019-07-16mikrF
Factor: 19507763235331970863751 / TF: 74-75*
2019-07-16mikrNF
no factor from 2^73 to 2^74
2019-07-16mikrNF
no factor from 2^72 to 2^73
2019-07-16mikrNF
no factor from 2^71 to 2^72
2018-11-20Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2017-04-10YxinityNF
no factor from 2^69 to 2^70
2016-12-14ConductorNF
no factor from 2^68 to 2^69
2015-11-18sasakiNF
no factor from 2^66 to 2^68
2014-08-03vinculumNF
no factor from 2^65 to 2^66