3 830 537 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
3992959381964608039639	22	71.8	2024-02-14 10:46:44

ECM

Digits	B1	Curves
25	50000	72 / 280

Estimated T-Level: 21.3 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-01	Thomas Christensen	A4F036D88EB5B516	0
Verified (Factored)	1999-08-31	Douglas McPherson	A4F036D88EB5B516	429214

Status		Date	User	Residue	Number of known factors	Shift	Type	Base
composite	Verified	2024-02-14	Anton Tsvetkov	9D4BA3838EF24875	1	67839	5	3

History

Date	User	Type	Result
2024-02-14	S00030	CERT	PRP Certification Proof certified good
2024-02-14	Anton Tsvetkov	C-PRP	M3830537/3992959381964608039639 : 9D4BA3838EF24875 PRP proof power = 7 PRP: Verified Proof certified good
2024-02-14	Anton Tsvetkov	F-ECM	Factor: 3992959381964608039639 / (ECM curve 15, B1=60738, B2=7333830, Edwards Sigma=8830081781898963)
2023-12-12	Joss	NF-PM1	B1=2326461, B2=2514892380
2022-05-11	DRobinsonPE	NF	no factor from 2^69 to 2^70
2021-01-22	axn	NF-PM1	B1=15000000, B2=750000000
2020-10-26	TJAOI	NF	no factor from 2^68 to 2^69
2018-09-24	TJAOI	NF	no factor from 2^67 to 2^68
2016-11-19	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-08-10	Joss	NF-PM1	B1=439084, B2=4390840, E=6
2016-08-06	Joss	NF-PM1	B1=439084, B2=2195420, E=6
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Joss	NF-PM1	B1=219542, B2=2195420, E=6
2016-02-23	omylist	NF	no factor from 2^65 to 2^66
2015-01-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-14	Joss	NF-PM1	B1=86756
2012-02-29	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-30	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1137500, E=6
2011-03-11	markr	NF	no factor from 2^61 to 2^62
2009-07-27	Carsten Kossendey	NF-PM1	B1=20000, B2=270000
2009-02-27	S485122	NF	no factor from 2^60 to 2^61

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