2 860 133 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
85151999696520593038417	23	76.2	2020-10-03 01:22:10

ECM

Digits	B1	Curves
25	50000	36 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Pete Evans	8B27CDB048FA078D	0
Verified (Factored)		Jim Fare	8B27CDB048FA078D	0
Verified (Factored)	1999-09-30	Thariq Ahmad	8B27CDB048FA078D	2804518

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-03	SRJ2877	556F26538BFA99B3	1	238679	5	3

History

Date	User	Type	Result
2020-10-03	Ben Delo	CERT	PRP Certification Proof certified good
2020-10-03	SRJ2877	C-PRP	M2860133/85151999696520593038417 : 556F26538BFA99B3 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-03	mnd9	F-ECM	Factor: 85151999696520593038417 / (ECM curve 4, B1=50000, B2=5000000, Sigma=6022537132014255)
2019-10-23	masser	NF-PM1	B1=2870000, B2=28700000, E=12
2019-01-07	chuenkit	NF	no factor from 2^67 to 2^68
2017-11-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-04-22	Joss	NF-PM1	B1=348124, B2=3481240, E=6
2016-12-23	Joss	NF-PM1	B1=208874
2016-07-30	Joss	NF-PM1	B1=174062, B2=4515000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-18	Yxinity	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-01-25	lycorn	NF	no factor from 2^62 to 2^63
2012-01-25	lycorn	NF	no factor from 2^61 to 2^62
2011-01-30	markr	NF-PM1	B1=105000, B2=2257500, E=6
2011-01-27	Joss	NF-PM1	B1=50000
2011-01-03	Joss	NF-PM1	B1=30000
2010-12-22	Joss	NF-PM1	B1=20000
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=157500
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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