Marin Mersenne 2^P-1
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MnStatusDetails
2452477Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
151609053025111980231201345192993.62021-03-21 00:18:40
ECM
DigitsB1Curves
2550000121 / 280
Estimated T-Level: 22.2 ⓘ
TF below 2^69 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Len Ruth5154B53BEC8CDBFE0
Verified (Factored)Sturle Sunde5154B53BEC8CDBFE0
Verified (Factored)2015-11-15MadPoo5154B53BEC8CDBFE2259300
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-03-21Oliver Kruse10200DC53BAE60DE1225716953
History
DateUserTypeResult
2021-03-21C.D.B.CERT
PRP Certification
Proof certified good
2021-03-21Oliver KruseC-PRP
M2452477/15160905302511198023120134519 : 10200DC53BAE60DE
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-21tottenhoffF-ECM
Factor: 15160905302511198023120134519 / (ECM curve 6, B1=50000, B2=5000000, Sigma=8751083416590698)
2019-07-17TJAOINF
no factor from 2^67 to 2^68
2017-07-14Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-15MadPooC-LL
5154B53BEC8CDBFE
2015-10-25ramgeisNF
no factor from 2^65 to 2^66
2015-03-03VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-03VictordeHollanderNF
no factor from 2^63 to 2^64
2014-02-06mikrNF-PM1
B1=3102822, B2=43439508, E=12
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-07Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-19Oscar ÖstlinNF-PM1
B1=95000, B2=1947500, E=6
2010-12-15JossNF-PM1
B1=20000
2009-01-17Sturle SundeNF
no factor from 2^60 to 2^61