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
238199483Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
20638251795085132435912270.82019-09-15 19:10:50
History
DateUserTypeResult
2019-09-15Smok_bmv F
Factor: 2063825179508513243591 / TF: 70-71
2018-09-22Chabot PrimeNF
no factor from 2^69 to 2^70
2018-05-02Niels_Mache_NextcloudNF
no factor from 2^68 to 2^69
2016-10-08DerekNF
no factor from 2^67 to 2^68
2015-11-27Grant McCrackenNF
no factor from 2^66 to 2^67
2013-10-15AserobertoNF
no factor from 2^65 to 2^66
2011-07-05sasaki3NF
no factor from 2^64 to 2^65