2 864 077 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
833585518645830169553	21	69.5	2020-09-25 18:12:50

ECM

Digits	B1	Curves
25	50000	32 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-12	David A McGough	43321A5078D372D5	0
Verified (Factored)	1999-09-07	Frank Fullum	43321A5078D372D5	839091
Verified (Factored)	2018-09-19	kkmrkkblmbrbk	43321A5078D372D5	1947976

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-09-26	ANONYMOUS	D17BA4911A96C239	1	694931	5	3
Verified	2020-09-26	xyuzyz	D17BA4911A96C239	1	2444449	5	3

History

Date	User	Type	Result
2020-09-26	xyuzyz	C-PRP	M2864077/833585518645830169553 : D17BA4911A96C239 PRP: Verified PRP without proof (not generated)
2020-09-26	ANONYMOUS	C-PRP	M2864077/833585518645830169553 : D17BA4911A96C239 PRP: Verified PRP without proof (not generated)
2020-09-25	MarkS	F-ECM	Factor: 833585518645830169553 / (ECM curve 1, B1=50000, B2=5000000, Sigma=1974048859493014)
2020-03-10	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-10-24	masser	NF-PM1	B1=2870000, B2=28700000, E=12
2019-01-08	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-19	kkmrkkblmbrbk	C-LL	43321A5078D372D5
2018-08-29	Joss	NF-PM1	B1=848008, B2=2544024, E=6
2018-08-27	Joss	NF-PM1	B1=848008, B2=1696016, E=6
2017-11-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-04-04	Joss	NF-PM1	B1=324721, B2=3247210, E=6
2017-01-10	Joss	NF-PM1	B1=225501
2016-12-19	Joss	NF-PM1	B1=187918
2016-08-25	Joss	NF-PM1	B1=156599, B2=4830000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-02-18	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
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-02	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-02-09	markr	NF-PM1	B1=115000, B2=2415000, E=6
2011-01-21	Joss	NF-PM1	B1=50000
2011-01-03	Joss	NF-PM1	B1=30000
2010-12-22	Joss	NF-PM1	B1=20000
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=157500
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61

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