33 610 387 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 8 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
806649289	9	29.6	old
2957714057	10	31.5	2008-09-09 20:37:48
6990960497	10	32.7	2008-09-09 20:37:48
52230541399	11	35.6	2008-09-09 20:37:48
278630108231	12	38.0	2008-09-09 20:37:48
12564971070256849	17	53.5	2014-09-26 11:21:24
206693782355865184169	21	67.5	2019-06-20 04:00:09
3992278237106790742567	22	71.8	2022-12-07 06:55:49

ECM

Digits	B1	Curves
25	50000	0 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-02-22	Dobri	6399EA86A55DE230	8	22286274	5	3

History

Date	User	Type	Result
2024-01-31	masser	NF-PP1	Start=2/7, B1=50000, B2=3900000
2023-12-05	masser	NF	no factor from 2^74 to 2^75
2023-04-02	Dobri	NF	no factor from 2^73 to 2^74
2023-04-02	Dobri	NF	no factor from 2^72 to 2^73
2023-04-02	Dobri	NF-PM1	B1=3000000, B2=3000217290
2023-02-22	curtisc	CERT	PRP Certification Proof certified good
2023-02-22	Dobri	C-PRP	M33610387/806649289/2957714057/6990960497/52230541399/278630108231/12564971070256849/206693782355865184169/3992278237106790742567 : 6399EA86A55DE230 PRP proof power = 9 PRP: Verified Proof certified good
2022-12-07	LordJulius	F	Factor: 3992278237106790742567 / TF: 71-72
2022-04-18	masser	NF-PM1	B1=200000, B2=20687940
2022-02-22	masser	NF	no factor from 2^70 to 2^71
2021-08-06	Seth_Tr	NF	no factor from 2^68 to 2^69
2021-08-06	Seth_Tr	NF	no factor from 2^67 to 2^68
2019-12-17	Seth_Tr	NF	no factor from 2^69 to 2^70
2019-06-20	Seth_Tr	F	Factor: 206693782355865184169 / TF: 67-68
2019-06-17	Seth_Tr	NF	no factor from 2^66 to 2^67
2014-09-26	TJAOI	F	Factor: 12564971070256849 / TF: 53-54
2008-09-09	Will Edgington	F	Factor: 278630108231
2008-09-09	Will Edgington	F	Factor: 52230541399
2008-09-09	Will Edgington	F	Factor: 6990960497
2008-09-09	Will Edgington	F	Factor: 2957714057

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