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
197762923Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
41423055864585083378092271.82019-05-06 17:12:00
History
DateUserTypeResult
2019-05-06yponomarevF
Factor: 4142305586458508337809 / TF: 71-72
2019-02-12Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-12-21Chabot PrimeNF
no factor from 2^69 to 2^70
2017-09-04kevshawNF
no factor from 2^68 to 2^69
2016-08-10XZTNF
no factor from 2^67 to 2^68
2015-09-18beyondNF
no factor from 2^66 to 2^67
2013-07-02KayJongsmaNF
no factor from 2^65 to 2^66
2011-04-25laleraNF
no factor from 2^64 to 2^65
2010-08-08MarzbugNF
no factor from 2^63 to 2^64