2 643 457 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
244310243254385121294170663	27	87.7	2022-05-29 23:30:20

ECM

Digits	B1	Curves
25	50000	140 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		schebi	7C8C7A1CE35C845A	0
Verified (Factored)	1999-04-13	Paul Phillips	7C8C7A1CE35C845A	667461
Verified (Factored)	2018-07-13	kkmrkkblmbrbk	7C8C7A1CE35C845A	763221

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-06-04	XZT	564E1CE0C53DFFBD	1	1291132	5	3

History

Date	User	Type	Result
2022-06-04	Joshua Hallfrisch	CERT	PRP Certification Proof certified good
2022-06-04	XZT	C-PRP	M2643457/244310243254385121294170663 : 564E1CE0C53DFFBD PRP proof power = 7 PRP: Verified Proof certified good
2022-05-29	daveward2005	F-ECM	Factor: 244310243254385121294170663 / (ECM curve 1, B1=50000, B2=5000000, Sigma=1251923073469014)
2021-07-01	TJAOI	NF	no factor from 2^68 to 2^69
2019-11-27	masser	NF-PM1	B1=2000000, B2=50000000, E=12
2019-03-04	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-13	kkmrkkblmbrbk	C-LL	7C8C7A1CE35C845A
2017-09-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-05-08	Joss	NF-PM1	B1=360000, B2=3600000, E=6
2016-12-27	Joss	NF-PM1	B1=206385
2016-12-26	Joss	NF-PM1	B1=171988
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-21	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
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-05	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-01-18	James Heinrich	NF-PM1	B1=180000, B2=4320000, E=6
2009-06-22	USAFSS	NF-PM1	B1=30000, B2=420000
2009-01-26	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password