Marin Mersenne 2^P-1
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MnStatusDetails
4946299Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
15335941980290540001112270.42021-04-24 17:39:36
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-07-11Blaine DealAC7A6889A20393F80
Verified (Factored)2000-06-26Sanford SorkinAC7A6889A20393F82511603
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-04-26ThomRuleyC7B1E794C993CCBF1402127653
Verified2021-05-03Chang Chia-TcheC7B1E794C993CCBF132822653
History
DateUserTypeResult
2025-06-20GregF
Factor: 1533594198029054000111 / TF: 70-71
2021-05-03Ben DeloCERT
PRP Certification
Proof certified good
2021-05-03Chang Chia-TcheC-PRP
M4946299/1533594198029054000111 : C7B1E794C993CCBF
PRP proof power = 7
PRP: Verified
Proof certified good
2021-04-26ThomRuleyC-PRP
M4946299/1533594198029054000111 : C7B1E794C993CCBF
PRP: Verified
PRP without proof (not generated)
2021-04-24-Anonymous-F
Factor: 1533594198029054000111 / TF: 70-71*
2021-04-23-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-11TJAOINF
no factor from 2^68 to 2^69
2018-05-23ramgeisNF
no factor from 2^67 to 2^68
2017-10-26YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^61
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-26snme2pm1NF
no factor from 2^65 to 2^66
2014-12-31VictordeHollanderNF
no factor from 2^64 to 2^65
2014-12-31VictordeHollanderNF
no factor from 2^63 to 2^64
2014-12-20mikrNF-PM1
B1=1200000, B2=39750000, E=12
2011-11-06GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-21Squeeky_SquirrelNF-PM1
B1=60000, B2=960000, E=6
2010-01-05markrNF
no factor from 2^61 to 2^62
2009-08-24Carsten KossendeyNF-PM1
B1=30000, B2=435000