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
905556199Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
11955567281598522784312270.02017-10-23 16:03:50
12987589519094729695512270.12017-10-23 16:03:49
History
DateUserTypeResult
2024-08-15tbusbyNF
no factor from 2^68 to 2^70
2017-10-23ConductorF
Factor: 1195556728159852278431 / TF: 70-71
2017-10-23ConductorF
Factor: 1298758951909472969551 / TF: 70-71
2016-04-17YxinityNF
no factor from 2^67 to 2^70
2015-02-06Gordon SpenceNF
no factor from 2^66 to 2^67
2013-04-25ramgeisNF
no factor from 2^65 to 2^66
2011-11-03lindeeNF
no factor from 2^64 to 2^65
2010-07-09lindedNF
no factor from 2^63 to 2^64