2 841 973 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
461090167376856002738551	24	78.6	2019-05-21 19:32:25

ECM

Digits	B1	Curves
25	50000	93 / 280

Estimated T-Level: 21.7 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Matt Clapp	5FD94C695D103907	0
Verified (Factored)	1999-10-15	Christoph Heuberger	5FD94C695D103907	1014031
Verified (Factored)	2018-09-14	kkmrkkblmbrbk	5FD94C695D103907	496841

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-05-22	Niels_Mache_Nextcloud	F86E49DB0AF8ED36	1	1348199	5	3
Verified	2019-05-22	ATH	F86E49DB0AF8ED36	1	1794202	5	3

P-1 factors

Date	Factor	B1	B2
2019-05-21	461090167376856002738551	1000000	20000000

History

Date	User	Type	Result
2019-05-22	ATH	C-PRP	M2841973/461090167376856002738551 : F86E49DB0AF8ED36 PRP: Verified PRP without proof (not generated)
2019-05-22	Niels_Mache_Nextcloud	C-PRP	M2841973/461090167376856002738551 : F86E49DB0AF8ED36 PRP: Verified PRP without proof (not generated)
2019-05-21	BigBrother	F-PM1	Factor: 461090167376856002738551 / (P-1, 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	5FD94C695D103907
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
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-01-31	lycorn	NF	no factor from 2^61 to 2^62
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password