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

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MnStatusDetails
38118737Composite, with 8 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
533662319929.0old
112831461531133.42008-09-10 02:26:03
386523993191135.22008-09-10 02:26:03
1286126186391236.92008-09-10 02:26:03
6910164643371239.32008-09-10 02:26:03
33205231800711341.62008-09-10 02:26:03
3696638470924791548.42008-09-10 02:26:04
16934281288230786132472270.52012-02-26 14:55:39
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-12-05ATH428FC5CF49B4FFA682036847553
Verified2020-05-30Jaytholomew428FC5CF49B4FFA682822238953
History
DateUserTypeResult
2021-08-06Seth_TrNF
no factor from 2^70 to 2^71
2021-08-06Seth_TrNF
no factor from 2^68 to 2^69
2020-05-30JaytholomewC-PRP
M38118737/533662319/11283146153/38652399319/128612618639/691016464337/3320523180071/369663847092479/1693428128823078613247 : 428FC5CF49B4FFA6
PRP: Verified
PRP without proof (not generated)
2020-01-03Seth_TrNF
no factor from 2^73 to 2^74
2019-12-15Seth_TrNF
no factor from 2^72 to 2^73
2019-12-10Seth_TrNF
no factor from 2^71 to 2^72
2019-12-04Seth_TrNF
no factor from 2^69 to 2^70
2019-06-20Seth_TrNF
no factor from 2^67 to 2^68
2019-06-17Seth_TrNF
no factor from 2^66 to 2^67
2017-12-05ATHC-PRP
M38118737/533662319/11283146153/38652399319/128612618639/691016464337/3320523180071/369663847092479/1693428128823078613247 : 428FC5CF49B4FFA6
PRP: Verified
PRP without proof (not generated)
2012-02-26James HeinrichF
Factor: 1693428128823078613247
2008-09-10Will EdgingtonF
Factor: 369663847092479
2008-09-10Will EdgingtonF
Factor: 3320523180071
2008-09-10Will EdgingtonF
Factor: 691016464337
2008-09-10Will EdgingtonF
Factor: 128612618639
2008-09-10Will EdgingtonF
Factor: 38652399319
2008-09-10Will EdgingtonF
Factor: 11283146153