3 270 517 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1171866751511370927697821831552707747281	40	129.8	2020-12-06 06:06:15

ECM

Digits	B1	Curves
25	50000	15 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-12	Dug Elson	FE01A32F4805EF3F	0
Verified (Factored)	1999-06-26	Ben Consilvio	FE01A32F4805EF3F	2411324

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-12-10	Sébastien BROUCKE	D4C32D5A3281A8D8	1	2514138	5	3
Verified	2020-12-11	marssystems	D4C32D5A3281A8D8	1	465219	5	3

P-1 factors

Date	Factor	B1	B2
2020-12-06	1171866751511370927697821831552707747281	4000000	150000000

History

Date	User	Type	Result
2022-07-17	Joss	NF-PM1	B1=3366405, B2=3273567990
2021-12-22	Joss	NF-PM1	B1=3366405, B2=645134490
2021-12-21	Joss	NF-PM1	B1=3366405, B2=116701200
2021-12-08	Joss	NF	no factor from 2^68 to 2^69
2021-02-22	Joss	NF	no factor from 2^66 to 2^67
2021-02-21	Joss	NF	no factor from 2^65 to 2^66
2021-01-17	Joss	NF-PM1	B1=403400, B2=3270517, E=6
2020-12-11	DRobinsonPE	CERT	PRP Certification Proof certified good
2020-12-11	marssystems	C-PRP	M3270517/1171866751511370927697821831552707747281 : D4C32D5A3281A8D8 PRP proof power = 7 PRP: Verified Proof certified good
2020-12-10	Sébastien BROUCKE	C-PRP	M3270517/1171866751511370927697821831552707747281 : D4C32D5A3281A8D8 PRP: Verified PRP without proof (not generated)
2020-12-06	mikr	F-PM1	Factor: 1171866751511370927697821831552707747281 / (P-1, B1=4000000, B2=150000000, E=12)
2018-12-17	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-01-16	Joss	NF-PM1	B1=383400, B2=3834000, E=6
2015-06-28	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=99250
2014-06-26	-Anonymous-	NF-PM1	B1=79625
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-01	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-18	USAFSS	NF-PM1	B1=60000, B2=1065000, E=6
2009-07-08	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-03	S485122	NF	no factor from 2^60 to 2^61

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