3 195 547 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
4643120718565636494364231	25	81.9	2021-03-19 22:46:19

ECM

Digits	B1	Curves
25	50000	43 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Dax Prather	28EF7BC39035020E	0
Verified (Factored)	1998-06-14	Paul Randal & Co	28EF7BC39035020E	0
Verified (Factored)	1999-06-26	Kirk Job Sluder	28EF7BC39035020E	929852

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-03-19	ATH	B35E0EA98D68FAF7	1	1839796	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241175550
2022-03-10	Joss	NF-PM1	B1=1000000, B2=134343300
2021-03-19	Larry Overbeck	CERT	PRP Certification Proof certified good
2021-03-19	ATH	C-PRP	M3195547/4643120718565636494364231 : B35E0EA98D68FAF7 PRP proof power = 7 PRP: Verified Proof certified good
2021-03-19	Zenzoma	F-ECM	Factor: 4643120718565636494364231 / (ECM curve 7, B1=50000, B2=5000000, Sigma=5911887461224970)
2019-11-20	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2018-12-17	TJAOI	NF	no factor from 2^67 to 2^68
2018-09-07	Joss	NF-PM1	B1=520300, B2=4162400
2018-09-07	Joss	NF-PM1	B1=520300, B2=3642100
2018-09-05	Joss	NF-PM1	B1=520300, B2=2081200
2018-09-04	Joss	NF-PM1	B1=520300, B2=1560900
2018-09-04	Joss	NF-PM1	B1=520300, B2=1040600
2017-04-30	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-21	Tha	NF	no factor from 2^65 to 2^66
2015-02-15	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-15	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	Squeeky_Squirrel	NF-PM1	B1=215000, B2=6235000, E=12
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-12	markr	NF	no factor from 2^61 to 2^62
2009-04-07	S485122	NF	no factor from 2^60 to 2^61

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