Marin Mersenne 2^P-1
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MnStatusDetails
4469849Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
112403464217047031718188598232993.22021-08-29 05:02:22
ECM
DigitsB1Curves
255000012 / 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)1998-07-05René DekkerC4A5ECC2A2C0D6C60
Verified (Factored)1999-12-08Stephen JazdzewskiC4A5ECC2A2C0D6C62913393
Verified (Factored)2002-06-09Brian J. BeesleyC4A5ECC2A2C0D6C64338731
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-09-08LaurVCF0C3D89C68E48A51242816153
P-1 factors
DateFactorB1B2
2021-08-291124034642170470317181885982310712789521607127
History
DateUserTypeResult
2021-09-08Choi4KANGCERT
PRP Certification
Proof certified good
2021-09-08LaurVC-PRP
M4469849/11240346421704703171818859823 : CF0C3D89C68E48A5
PRP proof power = 7
PRP: Verified
Proof certified good
2021-08-29LaurVF-PM1
Factor: 11240346421704703171818859823 / (P-1, B1=10712789, B2=521607127)
2021-08-22SRBaseNF
no factor from 2^70 to 2^71
2021-08-18SRBaseNF
no factor from 2^69 to 2^70
2021-07-17MadPooNF
no factor from 2^68 to 2^69
2021-04-24Architects CubedNF-PM1
B1=223000, B2=13884000
2018-06-24ramgeisNF
no factor from 2^67 to 2^68
2018-06-24ramgeisNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-06-25snme2pm1NF
no factor from 2^65 to 2^66
2014-12-01NesowaNF-PM1
B1=260000, B2=5590000, E=12
2014-09-22monstNF
no factor from 2^64 to 2^65
2014-09-22JayderNF
no factor from 2^63 to 2^64
2014-09-17JossNF-PM1
B1=69359
2012-02-03GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-10-07markrNF
no factor from 2^61 to 2^62