2 780 501 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
29291413883435949582089	23	74.6	2020-11-28 06:07:39

ECM

Digits	B1	Curves
25	50000	59 / 280

Estimated T-Level: 21.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Daniel Lake	E629CE9E89AD6483	0
Verified (Factored)	1999-06-15	rgaddipati	E629CE9E89AD6483	2388884
Verified (Factored)	2018-08-25	kkmrkkblmbrbk	E629CE9E89AD6483	2097807

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-11-28	mrh	E48C335898A8E881	1	2715392	5	3

History

Date	User	Type	Result
2020-11-28	Ben Delo	CERT	PRP Certification Proof certified good
2020-11-28	mrh	C-PRP	M2780501/29291413883435949582089 : E48C335898A8E881 PRP proof power = 7 PRP: Verified Proof certified good
2020-11-28	daveward2005	F-ECM	Factor: 29291413883435949582089 / (ECM curve 5, B1=50000, B2=5000000, Sigma=8265617942796604)
2019-02-24	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-25	kkmrkkblmbrbk	C-LL	E629CE9E89AD6483
2017-10-16	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-04-01	mikr	NF-PM1	B1=2700000, B2=84000000, E=12
2017-03-23	Joss	NF-PM1	B1=353341, B2=3533410, E=6
2017-02-25	Joss	NF-PM1	B1=294451, B2=2944510, E=6
2016-12-23	Joss	NF-PM1	B1=204480
2016-10-26	Joss	NF-PM1	B1=170400
2016-08-27	Joss	NF-PM1	B1=142000, B2=4785000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-12-20	omylist	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
2012-03-15	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-11-26	markr	NF-PM1	B1=110000, B2=2392500, E=6
2010-11-10	Joss	NF-PM1	B1=15000
2009-01-28	Sturle Sunde	NF	no factor from 2^60 to 2^61

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