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
802155539Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
12250890104854459577272270.12020-02-15 20:22:24
History
DateUserTypeResult
2020-02-15ConductorF
Factor: 1225089010485445957727 / TF: 70-71
2016-08-19ramgeisNF
no factor from 2^68 to 2^70
2015-05-06sasakiNF
no factor from 2^67 to 2^68
2014-12-02sasakiNF
no factor from 2^66 to 2^67
2012-02-07sasaki3NF
no factor from 2^65 to 2^66
2012-02-07sasaki3NF
no factor from 2^64 to 2^65
2010-03-29Architects CubedNF
no factor from 2^63 to 2^64