3 302 149 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
83296272154193927232031	23	76.1	2021-01-26 18:14:28

ECM

Digits	B1	Curves
25	50000	22 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-03-17	Teun Nijssen	BDA0DEA2BBD25A8A	0
Verified (Factored)	1999-06-15	James Johnston	BDA0DEA2BBD25A8A	2862277

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-26	ViliamF	18794DCB96837446	1	84666	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241152450
2022-04-02	Joss	NF-PM1	B1=1000000, B2=134316000
2021-01-26	ky0uraku	CERT	PRP Certification Proof certified good
2021-01-26	ViliamF	C-PRP	M3302149/83296272154193927232031 : 18794DCB96837446 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-26	GAN	F-ECM	Factor: 83296272154193927232031 / (ECM curve 7, B1=50000, B2=5000000)
2019-12-22	GdS	NF-PM1	B1=11086738, B2=410209309, E=12
2019-12-13	GdS	NF	no factor from 2^69 to 2^70
2019-12-13	GdS	NF	no factor from 2^68 to 2^69
2018-12-10	TJAOI	NF	no factor from 2^67 to 2^68
2018-08-11	Joss	NF-PM1	B1=410000, B2=4100000
2018-08-08	Joss	NF-PM1	B1=410000, B2=2050000
2018-08-08	Joss	NF-PM1	B1=410000, B2=1640000
2018-08-07	Joss	NF-PM1	B1=410000, B2=1230000
2018-08-06	Joss	NF-PM1	B1=410000, B2=820000
2017-02-21	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-29	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
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
2012-11-13	Squeeky_Squirrel	NF-PM1	B1=205000, B2=4612500, E=6
2012-08-25	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-09-29	USAFSS	NF-PM1	B1=55000, B2=880000, E=6
2011-09-13	markr	NF	no factor to 2^62
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-01	S485122	NF	no factor from 2^60 to 2^61

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