2 954 789 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
7404816775197268254181932631	28	92.6	2023-03-18 09:18:29

ECM

Digits	B1	Curves
25	50000	126 / 280

Estimated T-Level: 22.3 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Matthias Menzel	A8CF65780430ADD3	0
Verified (Factored)	1999-08-07	Jean Marie RAULIN	A8CF65780430ADD3	1862632
Verified (Factored)	2018-10-13	kkmrkkblmbrbk	A8CF65780430ADD3	2432954

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-06-08	/r/counting	25B2BA70C9638BC5	1	2740448	5	3

P-1 factors

Date	Factor	B1	B2
2023-03-18	7404816775197268254181932631	10000000	19236987000

History

Date	User	Type	Result
2023-06-09	slandrum	CERT	PRP Certification Proof certified good
2023-06-08	/r/counting	C-PRP	M2954789/7404816775197268254181932631 : 25B2BA70C9638BC5 PRP proof power = 7 PRP: Verified Proof certified good
2023-03-18	mikr	F-PM1	Factor: 7404816775197268254181932631 / (P-1, B1=10000000, B2=19236987000)
2022-08-28	Wentao Huang	NF-PM1	B1=1290000, B2=3770897130
2021-05-12	TJAOI	NF	no factor from 2^68 to 2^69
2018-12-24	chuenkit	NF	no factor from 2^67 to 2^68
2018-10-13	kkmrkkblmbrbk	C-LL	A8CF65780430ADD3
2017-11-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-09-07	Joss	NF-PM1	B1=1072652, B2=22000000, E=12
2016-02-26	ramgeis	NF	no factor from 2^65 to 2^66
2015-05-08	VictordeHollander	NF-PM1	B1=1000000, B2=20000000, E=12
2015-05-01	Joss	NF-PM1	B1=975139
2015-04-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2015-04-08	Joss	NF-PM1	B1=805900
2015-03-29	Joss	NF-PM1	B1=732637
2015-03-15	Joss	NF-PM1	B1=605486
2015-03-12	Joss	NF-PM1	B1=550442
2015-03-02	Joss	NF-PM1	B1=500402
2015-02-25	Joss	NF-PM1	B1=454911
2015-02-06	Joss	NF-PM1	B1=413556
2015-02-01	Joss	NF-PM1	B1=187980
2015-01-31	Joss	NF-PM1	B1=170891
2015-01-30	Joss	NF-PM1	B1=155356
2015-01-29	Joss	NF-PM1	B1=141233
2014-11-25	Joss	NF-PM1	B1=116722
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-12-17	markr	NF	no factor from 2^61 to 2^62
2010-11-02	markr	NF-PM1	B1=95000, B2=1995000, E=6
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61

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