Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
84883853Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
47218974878041793217408312582.02017-12-11 20:04:35
P-1 factors
DateFactorB1B2
2017-12-11472189748780417932174083167500012150000
History
DateUserTypeResult
2017-12-11Smok_bmv F-PM1
Factor: 4721897487804179321740831 / (P-1, B1=675000, B2=12150000)
2017-07-05electron1897NF
no factor from 2^75 to 2^76
2017-06-25The MawnNF
no factor from 2^74 to 2^75
2017-05-19-Anonymous-NF
no factor from 2^73 to 2^74
2017-02-15Judge HaleNF
no factor from 2^72 to 2^73
2017-02-15Judge HaleNF
no factor from 2^71 to 2^72
2014-08-15GrunwalderGIMPNF
no factor from 2^70 to 2^71
2014-04-30ANONYMOUSNF
no factor from 2^69 to 2^70
2014-04-14Preben SNF
no factor from 2^68 to 2^69
2014-04-12SMoffatNF
no factor from 2^67 to 2^68
2013-02-21Taz-i7NF
no factor from 2^66 to 2^67
2012-08-18Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-23Architects CubedNF
no factor from 2^64 to 2^65