2 444 839 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
5624703063013361166569	22	72.3	2024-12-05 14:53:21

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	75 / 640

Estimated T-Level: 25.6 ⓘ

TF below 2^80 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Scott Morgan	BE586D5A45EBB8A3	0
Verified (Factored)	1999-06-06	knut ploder	BE586D5A45EBB8A3	1930515
Verified (Factored)	2018-05-24	kkmrkkblmbrbk	BE586D5A45EBB8A3	1990322

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2024-12-05	fordobr	7F67C71A8A9DB827	1	2164804	5	3

History

Date	User	Type	Result
2024-12-05	George Woltman	CERT	PRP Certification Proof certified good
2024-12-05	fordobr	C-PRP	M2444839/5624703063013361166569 : 7F67C71A8A9DB827 PRP proof power = 7 PRP: Verified Proof certified good
2024-12-05	fordobr	F-ECM	Factor: 5624703063013361166569 / (ECM curve 24, B1=181396, B2=367552185, Edwards Sigma=391510059246012)
2024-04-26	TJAOI	NF	no factor from 2^69 to 2^70
2023-08-05	Sid & Andy	NF-PM1	B1=8900000, B2=46085641140
2023-07-22	Joss	NF-PM1	B1=1000000, B2=4217433990
2023-05-15	Joss	NF-PM1	B1=1000000, B2=1926380610
2023-03-08	Joss	NF-PM1	B1=1000000, B2=548467920
2021-06-24	TJAOI	NF	no factor from 2^68 to 2^69
2019-04-01	TJAOI	NF	no factor from 2^67 to 2^68
2019-03-25	Sid & Andy	NF-PM1	B1=6000000, B2=180000000, E=12
2018-05-24	kkmrkkblmbrbk	C-LL	BE586D5A45EBB8A3
2017-07-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-01-23	mikr	NF-PM1	B1=1172000, B2=48000000, E=12
2013-12-04	Jerry Hallett	NF	no factor from 2^62 to 2^63
2011-10-03	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-18	Oscar Östlin	NF-PM1	B1=95000, B2=1947500, E=6
2010-11-17	Joss	NF-PM1	B1=20000
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61

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