3 128 401 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
12607246919256204769279841	26	83.4	2020-12-22 00:19:19

ECM

Digits	B1	Curves
25	50000	24 / 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)	1998-04-15	Jason Gayman	7591D61D9BF91002	0
Verified (Factored)	1999-08-07	S05770	7591D61D9BF91002	1858194

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-12-23	Niels_Mache_Nextcloud	BE76488FA46F1671	1	1386662	5	3

History

Date	User	Type	Result
2021-12-22	Joss	NF-PM1	B1=3128401, B2=637437570
2021-12-19	Joss	NF-PM1	B1=3128401, B2=108997350
2021-11-22	Joss	NF-PM1	B1=3128401
2021-02-18	Joss	NF	no factor from 2^66 to 2^67
2021-02-18	Joss	NF	no factor from 2^65 to 2^66
2021-01-18	Joss	NF-PM1	B1=722144, B2=3128401, E=6
2020-12-23	ky0uraku	CERT	PRP Certification Proof certified good
2020-12-23	Niels_Mache_Nextcloud	C-PRP	M3128401/12607246919256204769279841 : BE76488FA46F1671 PRP proof power = 7 PRP: Verified Proof certified good
2020-12-22	Keysarecool	F-ECM	Factor: 12607246919256204769279841 / (ECM curve 2, B1=50000, B2=5000000, Sigma=8168427535204696)
2019-01-07	TJAOI	NF	no factor from 2^67 to 2^68
2018-12-15	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2018-07-18	Joss	NF-PM1	B1=692144, B2=4152864
2018-07-18	Joss	NF-PM1	B1=692144, B2=2768576
2018-07-17	Joss	NF-PM1	B1=692144, B2=2076432
2017-04-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-10-01	Squeeky_Squirrel	NF-PM1	B1=195000, B2=5460000, E=12
2015-06-14	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-13	markr	NF	no factor from 2^61 to 2^62
2011-08-31	Squeeky_Squirrel	NF-PM1	B1=105000, B2=2152500, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-04-13	S485122	NF	no factor from 2^60 to 2^61

Username
Password