3 291 283 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
79569948786077398968623	23	76.1	2020-01-16 18:20:46

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)		Sturle Sunde	49B7A3277799C68D	0
Verified (Factored)	1999-06-15	Sean Joseph Power	49B7A3277799C68D	2881134

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-01-16	mrh	684CE372E7FE3156	1	779567	5	3
Verified	2020-01-17	oodaira	684CE372E7FE3156	1	3264045	5	3

P-1 factors

Date	Factor	B1	B2
2020-01-16	79569948786077398968623	3000000	90000000

History

Date	User	Type	Result
2022-01-06	Joss	NF-PM1	B1=1000000, B2=116447100
2021-02-18	Joss	NF	no factor from 2^66 to 2^67
2021-01-16	Joss	NF-PM1	B1=856774, B2=3291283, E=6
2021-01-16	Joss	NF	no factor from 2^65 to 2^66
2020-01-17	oodaira	C-PRP	M3291283/79569948786077398968623 : 684CE372E7FE3156 PRP: Verified PRP without proof (not generated)
2020-01-16	mrh	C-PRP	M3291283/79569948786077398968623 : 684CE372E7FE3156 PRP: Verified PRP without proof (not generated)
2020-01-16	BigBrother	F-PM1	Factor: 79569948786077398968623 / (P-1, B1=3000000, B2=90000000, E=12)
2018-11-12	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-07	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-02-18	Joss	NF-PM1	B1=238464, B2=2384640, E=6
2017-02-04	Joss	NF-PM1	B1=198720
2017-01-29	Joss	NF-PM1	B1=165600
2017-01-19	Joss	NF-PM1	B1=138000
2015-06-29	Tha	NF	no factor from 2^65 to 2^66
2013-09-07	Squeeky_Squirrel	NF-PM1	B1=115000, B2=2645000, E=6
2012-12-10	lycorn	NF	no factor from 2^62 to 2^65
2011-09-29	markr	NF	no factor to 2^62
2011-09-26	USAFSS	NF-PM1	B1=60000, B2=1065000, E=6
2009-07-10	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-03-31	S485122	NF	no factor from 2^60 to 2^61

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