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
555557647Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12369558418853209145032270.12019-06-30 20:55:57
History
DateUserTypeResult
2019-06-30lindvvF
Factor: 1236955841885320914503 / TF: 70-71
2018-11-03Niels_Mache_NextcloudNF
no factor from 2^69 to 2^70
2018-03-23sasakiNF
no factor from 2^68 to 2^69
2016-11-15sasakiNF
no factor from 2^67 to 2^68
2015-11-19sasakiNF
no factor from 2^66 to 2^67
2014-09-08sasakiNF
no factor from 2^65 to 2^66
2011-09-26Architects CubedNF
no factor from 2^64 to 2^65