2 658 013 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
396962238080341442066415047	27	88.4	2022-02-08 20:56:30

ECM

Digits	B1	Curves
25	50000	135 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Peter Marksteiner	1F2AFA8502F730FC	0
Verified (Factored)	1999-05-09	Bruce Winter	1F2AFA8502F730FC	737438
Verified (Factored)	2018-04-25	gunhed	1F2AFA8502F730FC	2003226
Verified (Factored)	2018-07-21	kkmrkkblmbrbk	1F2AFA8502F730FC	145819

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-02-10	Tucker Kao	5C0E00A7F3775BB9	1	242583	5	3

History

Date	User	Type	Result
2022-02-10	techn1ciaN	CERT	PRP Certification Proof certified good
2022-02-10	Tucker Kao	C-PRP	M2658013/396962238080341442066415047 : 5C0E00A7F3775BB9 PRP proof power = 7 PRP: Verified Proof certified good
2022-02-08	MarkS	F-ECM	Factor: 396962238080341442066415047 / (ECM curve 6, B1=50000, B2=5000000, Sigma=8290355996198889)
2021-06-03	TJAOI	NF	no factor from 2^68 to 2^69
2019-11-26	masser	NF-PM1	B1=2000000, B2=50000000, E=12
2019-05-13	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-21	kkmrkkblmbrbk	C-LL	1F2AFA8502F730FC
2018-04-25	gunhed	C-LL	1F2AFA8502F730FC
2017-09-19	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-09-13	Joss	NF-PM1	B1=500000, B2=5000000, E=6
2017-09-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-22	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-24	markr	NF	no factor from 2^61 to 2^62
2011-01-19	James Heinrich	NF-PM1	B1=250000, B2=8000000, E=12
2009-06-23	USAFSS	NF-PM1	B1=30000, B2=420000
2009-01-27	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password