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
568001227Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5152878236439981037612168.82017-08-13 11:52:01
History
DateUserTypeResult
2025-03-07James HeinrichF
Factor: 515287823643998103761 / TF: 68-70
2017-08-13Alex_soldierF
Factor: 515287823643998103761 / TF: 68-69*
2016-11-09ConductorNF
no factor from 2^67 to 2^68
2015-11-06sasakiNF
no factor from 2^66 to 2^67
2014-07-16sasakiNF
no factor from 2^65 to 2^66
2011-07-07Architects CubedNF
no factor from 2^64 to 2^65
2010-03-11Architects CubedNF
no factor from 2^63 to 2^64