2 722 879 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
241440084786858833248903	24	77.7	2020-10-22 03:08:22

ECM

Digits	B1	Curves
25	50000	56 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-08	Ed Winchester	C658D985E699EBD0	0
Verified (Factored)	1999-07-12	Ramona Singer	C658D985E699EBD0	1663031
Verified (Factored)	2018-08-06	kkmrkkblmbrbk	C658D985E699EBD0	1662948

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-22	mrh	08A020F664DEE268	1	1394338	5	3
Verified	2020-10-22	oodaira	08A020F664DEE268	1	1065932	5	3

History

Date	User	Type	Result
2023-04-18	Kevin_9611	NF-PM1	B1=720000, B2=868549500
2020-10-22	Ben Delo	CERT	PRP Certification Proof certified good
2020-10-22	oodaira	C-PRP	M2722879/241440084786858833248903 : 08A020F664DEE268 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-22	mrh	C-PRP	M2722879/241440084786858833248903 : 08A020F664DEE268 PRP: Verified PRP without proof (not generated)
2020-10-22	mnd9	F-ECM	Factor: 241440084786858833248903 / (ECM curve 3, B1=50000, B2=5000000, Sigma=7108029175611602)
2019-02-12	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-20	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2018-08-06	kkmrkkblmbrbk	C-LL	C658D985E699EBD0
2017-10-05	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
2016-01-31	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
2012-04-16	markr	NF	no factor from 2^61 to 2^62
2011-02-23	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-18	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61

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