2 228 483 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
795511662530822728247	21	69.4	2020-07-09 14:04:56

ECM

Digits	B1	Curves
25	50000	83 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Andy Kohler	18B2234453DD59C1	0
Verified (Factored)		Terry Griffin	18B2234453DD59C1	0
Verified (Factored)	1999-04-02	Carlo Baffa	18B2234453DD59C1	687737

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-07-10	mnd9	49CEFD6F4B56D3EA	1	1882083	5	3
Verified	2020-07-12	fre_games	49CEFD6F4B56D3EA	1	1641266	5	3

History

Date	User	Type	Result
2020-07-12	fre_games	C-PRP	M2228483/795511662530822728247 : 49CEFD6F4B56D3EA PRP: Verified PRP without proof (not generated)
2020-07-10	mnd9	C-PRP	M2228483/795511662530822728247 : 49CEFD6F4B56D3EA PRP: Verified PRP without proof (not generated)
2020-07-09	GAN	F-ECM	Factor: 795511662530822728247 / (ECM curve 1, B1=50000, B2=5000000, Sigma=3181075504952445)
2019-04-15	TJAOI	NF	no factor from 2^67 to 2^68
2016-12-23	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-05	Alexander Dubrovin	NF-PM1	B1=2000000, B2=65000000, E=12
2015-11-24	Alexander Dubrovin	NF-PM1	B1=1000000, B2=14000000, E=12
2015-11-23	Alexander Dubrovin	NF-PM1	B1=1000000, B2=6000000, E=6
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-05-05	Squeeky_Squirrel	NF-PM1	B1=160000, B2=4600000, E=6
2015-03-06	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-06	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-30	Joss	NF-PM1	B1=142604
2014-05-26	Joss	NF-PM1	B1=113802
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-20	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-13	Oscar Östlin	NF-PM1	B1=85000, B2=1615000, E=6
2010-10-24	Oscar Östlin	NF-PM1	B1=75011
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password