2 707 591 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
4384262222386753140593	22	71.9	2021-06-15 14:12:47

ECM

Digits	B1	Curves
25	50000	104 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jud McCranie	9B50F9BAEE25376E	0
Verified (Factored)	1999-05-02	Per M. Hansen	9B50F9BAEE25376E	1551046
Verified (Factored)	2018-08-01	kkmrkkblmbrbk	9B50F9BAEE25376E	2214614

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-16	kutens	273B60504762EF60	1	235110	5	3

History

Date	User	Type	Result
2023-04-17	Kevin_9611	NF-PM1	B1=720000, B2=868549500
2021-06-16	curtisc	CERT	PRP Certification Proof certified good
2021-06-16	kutens	C-PRP	M2707591/4384262222386753140593 : 273B60504762EF60 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-15	daveward2005	F-ECM	Factor: 4384262222386753140593 / (ECM curve 6, B1=50000, B2=5000000, Sigma=1245080983260047)
2021-06-07	TJAOI	NF	no factor from 2^68 to 2^69
2019-02-11	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-06	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2018-08-01	kkmrkkblmbrbk	C-LL	9B50F9BAEE25376E
2017-09-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-29	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-29	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-03-30	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-18	Joss	NF-PM1	B1=50000
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-16	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61

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