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
153552563Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15306991642858320624412270.42017-07-04 01:00:57
History
DateUserTypeResult
2017-07-04Sergey NosovF
Factor: 1530699164285832062441 / TF: 70-72*
2017-06-05La GüiraNF
no factor from 2^69 to 2^70
2017-02-27XolotlNF
no factor from 2^68 to 2^69
2016-05-26RichardNF
no factor from 2^67 to 2^68
2015-04-04guruNF
no factor from 2^66 to 2^67
2013-01-27sasaki3NF
no factor from 2^65 to 2^66
2011-01-22RichardNF
no factor from 2^64 to 2^65
2010-06-24Mr-PlonkNF
no factor from 2^63 to 2^64