2 769 313 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
446172862974472807666529	24	78.6	2021-07-29 22:33:58

ECM

Digits	B1	Curves
25	50000	100 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Chris Smith	378F3DC89D9A0CA3	0
Verified (Factored)	1999-04-23	Wolfgang Hilbig	378F3DC89D9A0CA3	2374322
Verified (Factored)	2018-08-20	kkmrkkblmbrbk	378F3DC89D9A0CA3	2007500

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-30	SRJ2877	4CEAD25CA4353A81	1	449580	5	3

History

Date	User	Type	Result
2021-07-30	curtisc	CERT	PRP Certification Proof certified good
2021-07-30	SRJ2877	C-PRP	M2769313/446172862974472807666529 : 4CEAD25CA4353A81 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-29	daveward2005	F-ECM	Factor: 446172862974472807666529 / (ECM curve 1, B1=50000, B2=5000000, Sigma=2903279824590069)
2021-05-31	TJAOI	NF	no factor from 2^68 to 2^69
2019-02-23	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-20	kkmrkkblmbrbk	C-LL	378F3DC89D9A0CA3
2017-10-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-02-25	Joss	NF-PM1	B1=294451, B2=2944510, E=6
2017-02-14	mikr	NF-PM1	B1=2700000, B2=84000000, E=12
2016-12-23	Joss	NF-PM1	B1=204480
2016-10-26	Joss	NF-PM1	B1=170400
2016-08-13	Joss	NF-PM1	B1=142000, B2=4730000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-08	ramgeis	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
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-09	markr	NF	no factor from 2^61 to 2^62
2010-11-30	markr	NF-PM1	B1=110000, B2=2365000, E=6
2010-11-10	Joss	NF-PM1	B1=15000
2009-01-29	Sturle Sunde	NF	no factor from 2^60 to 2^61

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