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
277263187Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12079562057155223985432270.02019-07-26 20:23:41
History
DateUserTypeResult
2019-07-26ConductorF
Factor: 1207956205715522398543 / TF: 70-71
2019-07-26ConductorNF
no factor from 2^69 to 2^70
2018-07-08Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-05rubikvn2100NF
no factor from 2^67 to 2^68
2016-01-14MucolNF
no factor from 2^66 to 2^67
2013-12-07Lukin DmitryNF
no factor from 2^65 to 2^66
2011-09-08Mr-PlonkNF
no factor from 2^64 to 2^65
2010-04-07Carsten KossendeyNF
no factor from 2^63 to 2^64
2010-04-07Carsten KossendeyNF
no factor from 2^62 to 2^63