3 816 767 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
243820421187822144889681	24	77.7	2021-01-03 17:25:48

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jim Mulvey	8EFB8E490DA30265	0
Verified (Factored)	1999-09-07	Dan and Hannah Rubin	8EFB8E490DA30265	3613730

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-03	SRJ2877	5949D45B922912A6	1	770444	5	3

P-1 factors

Date	Factor	B1	B2
2021-01-03	243820421187822144889681	15000000	750000000

History

Date	User	Type	Result
2022-05-24	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-03	Joss	NF-PM1	B1=90000
2021-01-03	curtisc	CERT	PRP Certification Proof certified good
2021-01-03	SRJ2877	C-PRP	M3816767/243820421187822144889681 : 5949D45B922912A6 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-03	axn	F-PM1	Factor: 243820421187822144889681 / (P-1, B1=15000000, B2=750000000)
2020-10-26	TJAOI	NF	no factor from 2^68 to 2^69
2018-10-08	TJAOI	NF	no factor from 2^67 to 2^68
2016-11-17	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-08-14	Joss	NF-PM1	B1=222393, B2=4447860, E=6
2016-03-05	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-01-28	Joss	NF-PM1	B1=222393, B2=2223930, E=6
2015-01-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-20	Joss	NF-PM1	B1=81816
2012-03-23	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-11-03	Squeeky_Squirrel	NF-PM1	B1=65000, B2=1121250, E=6
2011-03-23	markr	NF	no factor from 2^61 to 2^62
2009-07-24	Carsten Kossendey	NF-PM1	B1=20000, B2=270000
2009-02-27	S485122	NF	no factor from 2^60 to 2^61

Username
Password