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
185618843Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
61902904517235687444472272.42019-06-03 18:00:22
History
DateUserTypeResult
2019-06-03Samuel SchmidtF
Factor: 6190290451723568744447 / TF: 72-73
2019-02-02Oliver KruseNF
no factor from 2^71 to 2^72
2018-12-02he4varNF
no factor from 2^70 to 2^71
2018-10-27Chabot PrimeNF
no factor from 2^69 to 2^70
2017-06-30Walt J. RimmerNF
no factor from 2^68 to 2^69
2016-07-20KorzeniowskiNF
no factor from 2^67 to 2^68
2015-08-13BJBNF
no factor from 2^66 to 2^67
2013-05-20Lukin DmitryNF
no factor from 2^65 to 2^66
2011-04-02RichardNF
no factor from 2^64 to 2^65
2010-07-28Lars FrickeNF
no factor from 2^63 to 2^64