2 611 813 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
97405005007147915913729	23	76.4	2021-08-22 22:49:20

ECM

Digits	B1	Curves
25	50000	122 / 280

Estimated T-Level: 22.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-08	Alex Lucaferro	7CDD8E64270DB9AC	0
Verified (Factored)	1999-06-06	Sam Robertson	7CDD8E64270DB9AC	1344467
Verified (Factored)	2018-06-30	kkmrkkblmbrbk	7CDD8E64270DB9AC	476355

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-08-23	SRJ2877	C9FDEFF6A1E16E66	1	1057035	5	3

History

Date	User	Type	Result
2021-08-23	Ben Delo	CERT	PRP Certification Proof certified good
2021-08-23	SRJ2877	C-PRP	M2611813/97405005007147915913729 : C9FDEFF6A1E16E66 PRP proof power = 7 PRP: Verified Proof certified good
2021-08-22	kutens	F-ECM	Factor: 97405005007147915913729 / (ECM curve 1, B1=50000, B2=6750000, Sigma=373787055024223)
2021-06-03	TJAOI	NF	no factor from 2^68 to 2^69
2019-10-06	masser	NF-PM1	B1=2611813, B2=26118130, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-06-30	kkmrkkblmbrbk	C-LL	7CDD8E64270DB9AC
2017-08-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-07-10	Joss	NF-PM1	B1=400000, B2=4000000, E=6
2016-05-21	Joss	NF-PM1	B1=200000, B2=3600000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-16	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-12	Joss	NF-PM1	B1=124575
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-25	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-12-14	markr	NF-PM1	B1=100000, B2=2125000, E=6
2010-11-17	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password