Marin Mersenne 2^P-1
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MnStatusDetails
2534551Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
25294161563335736606112232581.12020-07-06 12:40:34
ECM
DigitsB1Curves
2550000150 / 280
Estimated T-Level: 22.7 ⓘ
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Scott Kurowski37D9B2FAFBE25FA70
Verified (Factored)1999-06-06Kent Lee37D9B2FAFBE25FA72490647
Verified (Factored)2018-06-08kkmrkkblmbrbk37D9B2FAFBE25FA72406558
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-07-06M Miller1449BC1BE3C75720184315553
Verified2020-07-13Nesowa1449BC1BE3C75720187927153
History
DateUserTypeResult
2021-09-30Dylan DelgadoNF-PM1
B1=3900000, B2=354900000
2020-07-13NesowaC-PRP
M2534551/2529416156333573660611223 : 1449BC1BE3C75720
PRP: Verified
PRP without proof (not generated)
2020-07-06M MillerC-PRP
M2534551/2529416156333573660611223 : 1449BC1BE3C75720
PRP: Verified
PRP without proof (not generated)
2020-07-06mnd9F-ECM
Factor: 2529416156333573660611223 / (ECM curve 3, B1=50000, B2=5000000, Sigma=323149781665740)
2019-06-10TJAOINF
no factor from 2^67 to 2^68
2018-07-31mikrNF-PM1
B1=3000000, B2=135000000, E=12
2018-06-08kkmrkkblmbrbkC-LL
37D9B2FAFBE25FA7
2017-08-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-08ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-14Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-03-29James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-07JossNF-PM1
B1=50000
2011-01-02JossNF-PM1
B1=30000
2010-12-19JossNF-PM1
B1=20000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61