1 956 811 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
8351284449353779258289	22	72.8	2020-01-28 13:26:05

ECM

Digits	B1	Curves
25	50000	272 / 280

Estimated T-Level: 24.9 ⓘ

TF below 2^78 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jim Mulvey	97CEFC5B44C67405	0
Verified (Factored)	1998-12-27	Per M. Hansen	97CEFC5B44C67405	1418267
Verified (Factored)	2015-06-28	MadPoo	97CEFC5B44C67405	1323603

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-01-29	Jinyuan Wang	9957D8CF65D03907	1	1435324	5	3
Verified	2020-01-30	Jinyuan Wang	9957D8CF65D03907	1	78467	5	3
Verified	2020-02-01	Luigi Morelli	9957D8CF65D03907	1	801458	5	3

History

Date	User	Type	Result
2020-02-01	Luigi Morelli	C-PRP	M1956811/8351284449353779258289 : 9957D8CF65D03907 PRP: Verified PRP without proof (not generated)
2020-01-30	Jinyuan Wang	C-PRP	M1956811/8351284449353779258289 : 9957D8CF65D03907 PRP: Verified PRP without proof (not generated)
2020-01-29	Jinyuan Wang	C-PRP	M1956811/8351284449353779258289 : 9957D8CF65D03907 PRP: Verified PRP without proof (not generated)
2020-01-28	mnd9	F-ECM	Factor: 8351284449353779258289 / (ECM curve 1, B1=50000, B2=5000000, Sigma=7126778348086436)
2019-05-13	chuenkit	NF	no factor from 2^67 to 2^68
2018-11-26	Joss	NF-PM1	B1=1956811, B2=244601375, E=12
2018-05-11	Joss	NF-PM1	B1=1956811, B2=195681100, E=12
2018-03-03	Joss	NF-PM1	B1=1956811, B2=120000000, E=12
2018-02-14	Joss	NF-PM1	B1=1956811, B2=60000000, E=12
2018-01-22	TJAOI	NF	no factor from 2^66 to 2^67
2018-01-19	Joss	NF-PM1	B1=1956811, B2=30000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-08	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-28	MadPoo	C-LL	97CEFC5B44C67405
2015-04-21	lycorn	NF	no factor from 2^64 to 2^65
2015-04-21	lycorn	NF	no factor from 2^63 to 2^64
2011-08-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-05-12	kurly	NF-PM1	B1=1000000, B2=30000000, E=12
2010-01-13	S485122	NF	no factor from 2^60 to 2^61

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