2 842 291 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
6636154489150377837329	22	72.5	2020-02-05 14:49:07

ECM

Digits	B1	Curves
25	50000	30 / 280

Estimated T-Level: 20.5 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Chris Proctor	F34CB5C98B8D2A55	0
Verified (Factored)	1999-06-26	Carey Gister	F34CB5C98B8D2A55	838192
Verified (Factored)	2018-09-14	kkmrkkblmbrbk	F34CB5C98B8D2A55	843534

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-02-05	Christoph Zenger	C1AF7AB8179FC9D9	1	958045	5	3
Verified	2020-02-06	oodaira	C1AF7AB8179FC9D9	1	98736	5	3

P-1 factors

Date	Factor	B1	B2
2020-02-05	6636154489150377837329	5000000	200000000

History

Date	User	Type	Result
2020-02-06	oodaira	C-PRP	M2842291/6636154489150377837329 : C1AF7AB8179FC9D9 PRP: Verified PRP without proof (not generated)
2020-02-05	Christoph Zenger	C-PRP	M2842291/6636154489150377837329 : C1AF7AB8179FC9D9 PRP: Verified PRP without proof (not generated)
2020-02-05	masser	F-PM1	Factor: 6636154489150377837329 / (P-1, B1=5000000, B2=200000000, E=12)
2019-10-30	masser	NF-PM1	B1=2850000, B2=28500000, E=12
2019-05-21	BigBrother	NF-PM1	B1=1000000, B2=20000000, E=12
2019-01-05	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-14	kkmrkkblmbrbk	C-LL	F34CB5C98B8D2A55
2018-09-12	Joss	NF-PM1	B1=656916, B2=1970748
2018-09-05	Joss	NF-PM1	B1=656916
2018-09-03	Joss	NF-PM1	B1=602578
2018-08-30	Joss	NF-PM1	B1=502149
2017-11-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-03-11	Joss	NF-PM1	B1=328458, B2=3284580, E=6
2016-11-03	Joss	NF-PM1	B1=273715
2016-10-28	Joss	NF-PM1	B1=190080
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-14	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-01-30	lycorn	NF	no factor from 2^61 to 2^62
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61

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