2 692 891 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1329286448844516402962639	25	80.1	2021-05-20 03:05:29

ECM

Digits	B1	Curves
25	50000	101 / 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)	1998-11-07	Shane Bumpurs	7DB17F97C6240DE5	0
Verified (Factored)	1999-07-04	Goede Schueler/Christoph Steinbeck	7DB17F97C6240DE5	2213901
Verified (Factored)	2018-07-29	kkmrkkblmbrbk	7DB17F97C6240DE5	1403604

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-05-20	tottenhoff	830C08D0B05ACCEC	1	1427752	5	3

History

Date	User	Type	Result
2021-05-20	Paul@Aberdeenshire	CERT	PRP Certification Proof certified good
2021-05-20	tottenhoff	C-PRP	M2692891/1329286448844516402962639 : 830C08D0B05ACCEC PRP proof power = 7 PRP: Verified Proof certified good
2021-05-20	kutens	F-ECM	Factor: 1329286448844516402962639 / (ECM curve 3, B1=50000, B2=5000000, Sigma=8518314111194887)
2019-11-14	masser	NF-PM1	B1=2000000, B2=50000000, E=12
2019-03-25	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-29	kkmrkkblmbrbk	C-LL	7DB17F97C6240DE5
2018-07-14	Joss	NF-PM1	B1=670000, B2=6700000, E=6
2017-09-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-04-22	Joss	NF-PM1	B1=335000, B2=3350000, E=6
2016-12-20	Joss	NF-PM1	B1=201000
2016-07-14	Joss	NF-PM1	B1=167500, B2=4620000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-27	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-04	markr	NF	no factor from 2^61 to 2^62
2011-01-31	markr	NF-PM1	B1=105000, B2=2310000, E=6
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-22	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61

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