3 531 071 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
7265308217611745098926889423197719783	37	122.5	2022-03-02 07:37:06

ECM

Digits	B1	Curves
25	50000	45 / 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)	1998-05-16	Glenn S. Maitz	BB8BCC41064E933D	0
Verified (Factored)	1999-07-12	Marc Getty / Phil Fizur	BB8BCC41064E933D	398429

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-03-08	LaurV	25EB6031CF734DAC	1	2714801	5	3

P-1 factors

Date	Factor	B1	B2
2022-03-02	7265308217611745098926889423197719783	4000000	324000000

History

Date	User	Type	Result
2022-07-17	Joss	NF-PM1	B1=3531071, B2=3556971600
2022-04-08	Joss	NF-PM1	B1=1000000, B2=130318650
2022-03-08	Ratchet Zufreur	CERT	PRP Certification Proof certified good
2022-03-08	LaurV	C-PRP	M3531071/7265308217611745098926889423197719783 : 25EB6031CF734DAC PRP proof power = 7 PRP: Verified Proof certified good
2022-03-02	mikr	F-PM1	Factor: 7265308217611745098926889423197719783 / (P-1, B1=4000000, B2=324000000)
2021-11-07	Aaron Haviland	NF-PM1	B1=800000, B2=35000000, e=12
2021-09-04	ArtyomP	NF-PP1	Start=6/5, B1=50000, B2=2500000
2021-09-04	ArtyomP	NF-PP1	Start=2/7, B1=50000, B2=2500000
2021-03-19	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-03-17	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-03-17	-Anonymous-	NF	no factor from 2^69 to 2^70
2021-01-20	axn	NF	no factor from 2^68 to 2^69
2018-11-19	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-22	Joss	NF-PM1	B1=340000, B2=3400000, E=6
2017-01-11	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-03-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-11-12	Squeeky_Squirrel	NF-PM1	B1=170000, B2=4590000, E=6
2015-01-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-11-14	Joss	NF-PM1	B1=96354
2014-08-07	Joss	NF-PM1	B1=78177
2012-06-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-11-23	USAFSS	NF-PM1	B1=60000, B2=990000, E=6
2011-07-07	markr	NF	no factor to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-17	S485122	NF	no factor from 2^60 to 2^61

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