3 307 277 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
341904426562385233201	21	68.2	2021-05-23 06:00:41

ECM

Digits	B1	Curves
25	50000	41 / 280

Estimated T-Level: 20.7 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Didier Couderc	5068E9E9D251CB5A	0
Verified (Factored)	1999-06-26	Steve Milton	5068E9E9D251CB5A	567825

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-05-23	tottenhoff	D0F4CF09B7CBC2EC	1	308099	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
2021-05-23	AnthonyRais	CERT	PRP Certification Proof certified good
2021-05-23	tottenhoff	C-PRP	M3307277/341904426562385233201 : D0F4CF09B7CBC2EC PRP proof power = 7 PRP: Verified Proof certified good
2021-05-23	daveward2005	F-ECM	Factor: 341904426562385233201 / (ECM curve 5, B1=50000, B2=5000000, Sigma=2310345039061476)
2020-02-09	mikr	NF-PM1	B1=4000000, B2=150000000, E=12
2018-12-03	TJAOI	NF	no factor from 2^67 to 2^68
2018-08-13	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
2017-02-24	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-29	Yxinity	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
2012-11-15	Squeeky_Squirrel	NF-PM1	B1=205000, B2=4612500, E=6
2012-08-25	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-09-30	USAFSS	NF-PM1	B1=55000, B2=880000, E=6
2011-09-07	markr	NF	no factor to 2^62
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=195000
2009-04-01	S485122	NF	no factor from 2^60 to 2^61

Username
Password