2 844 197 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
355037801196445918645649	24	78.2	2021-07-09 09:47:08

ECM

Digits	B1	Curves
25	50000	90 / 280

Estimated T-Level: 21.6 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Mark Rawlings	BED946EE32D7BC45	0
Verified (Factored)	1999-07-27	Tim Speekenbrink	BED946EE32D7BC45	1667710
Verified (Factored)	2018-09-15	kkmrkkblmbrbk	BED946EE32D7BC45	176154

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-10	kutens	557EA3E582A20E13	1	2513633	5	3

History

Date	User	Type	Result
2021-07-10	Chuck	CERT	PRP Certification Proof certified good
2021-07-10	kutens	C-PRP	M2844197/355037801196445918645649 : 557EA3E582A20E13 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-09	kutens	F-ECM	Factor: 355037801196445918645649 / (ECM curve 7, B1=50000, B2=6650000, Sigma=4392908416482829)
2021-07-08	TJAOI	NF	no factor from 2^68 to 2^69
2020-02-11	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-10-30	masser	NF-PM1	B1=2850000, B2=28500000, E=12
2019-01-05	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-15	kkmrkkblmbrbk	C-LL	BED946EE32D7BC45
2017-11-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-06-28	Joss	NF-PM1	B1=390000, B2=3900000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-14	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
2012-02-08	Grant McCracken	NF	no factor from 2^61 to 2^62
2012-01-13	Squeeky_Squirrel	NF-PM1	B1=195000, B2=4875000, E=6
2011-01-24	Joss	NF-PM1	B1=50000
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61
2008-10-31	Jayson King	NF-PM1	B1=35000, B2=560000

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