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

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MnStatusDetails
171061483Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
131208723209072855113512373.52019-12-24 12:14:47
History
DateUserTypeResult
2025-04-28JurzalF
Factor: 13120872320907285511351 / TF: 73-74
2019-12-24Smok_bmv F
Factor: 13120872320907285511351 / TF: 73-74*
2019-08-28Ilya AlexandrovNF
no factor from 2^72 to 2^73
2018-09-07ZenghuiNF
no factor from 2^71 to 2^72
2017-01-10guruNF
no factor from 2^70 to 2^71
2017-01-08workerthreadNF
no factor from 2^69 to 2^70
2017-01-07workerthreadNF
no factor from 2^68 to 2^69
2016-04-15XZTNF
no factor from 2^67 to 2^68
2015-06-18riccardo ubertiNF
no factor from 2^66 to 2^67
2013-04-01firereddNF
no factor from 2^65 to 2^66
2011-02-24Mr-PlonkNF
no factor from 2^64 to 2^65
2010-07-11Marcus OldsNF
no factor from 2^63 to 2^64