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
220391527Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
16229180056518457189692270.52020-03-10 07:53:41
History
DateUserTypeResult
2020-03-10Alexander TsupkoF
Factor: 1622918005651845718969
2019-02-18CorbyguyNF
no factor from 2^69 to 2^70
2018-02-12prime23NF
no factor from 2^68 to 2^69
2016-09-04XZTNF
no factor from 2^67 to 2^68
2015-10-26Simon WendelNF
no factor from 2^66 to 2^67
2013-08-20Mr-PlonkNF
no factor from 2^65 to 2^66
2011-06-04sasaki3NF
no factor from 2^64 to 2^65