2 295 481 Exponent Status

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶²

Factored

Factor	Digits	Bits	Date
2221445839821437480191	22	70.9	2016-02-13 19:52:01
8205528212118389719964431	25	82.8	2016-04-26 12:16:10

P-1 factors

Date	Factors	B1	B2
2016-04-26	8205528212118389719964431	500000	15000000

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	127 / 640

Estimated T-Level: 26.0 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Martin Schnettker	46B929FCF875E260	0	Mac,John Sweeney,v1.4,(aka J3)
Factored	1999-03-01	Colin Smart	46B929FCF875E260	324497	Windows,Prime95,v17,(aka WT1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	PRP without proof (not generated)	2017-10-11	Oliver Kruse	25D27CF59242F886	1	0	1	3
Verified	PRP without proof (not generated)	2017-10-18	Oliver Kruse	ED144CE5F05D27AA	2	1593550	5	3
Verified	PRP without proof (not generated)	2017-11-22	storm5510	ED144CE5F05D27AA	2	746437	5	3

History

Date	User	Type	Result
2017-11-22	storm5510	C-PRP	M2295481/2221445839821437480191/8205528212118389719964431 : ED144CE5F05D27AA
2017-10-18	Oliver Kruse	C-PRP	M2295481/2221445839821437480191/8205528212118389719964431 : ED144CE5F05D27AA
2017-10-11	Oliver Kruse	C-PRP	M2295481/known_factors : 25D27CF59242F886
2016-04-26	alpertron	F-PM1	Factor: 8205528212118389719964431 / B1=500000, B2=15000000
2016-02-23	Mark Rose	NF	no factor TF: 58-60
2016-02-13	bam	F-ECM	Factor: 2221445839821437480191
2016-01-16	Joss	NF-PM1	B1=431391, B2=4313910, E=6
2015-11-04	ramgeis	NF	no factor TF: 65-66
2015-03-12	VictordeHollander	NF	no factor TF: 64-65
2015-03-12	VictordeHollander	NF	no factor TF: 63-64
2014-10-03	Joss	NF-PM1	B1=140922
2014-06-11	Joss	NF-PM1	B1=112961
2013-01-23	dbaugh	NF	no factor TF: 62-63
2012-05-12	Sebastian Hornbostel	NF	no factor TF: 61-62
2011-01-17	Oscar Östlin	NF-PM1	B1=85000, B2=1742500, E=6
2010-12-03	Oscar Östlin	NF-PM1	B1=75011
2010-11-15	Joss	NF-PM1	B1=20000
2010-11-07	Joss	NF-PM1	B1=15000
2009-01-16	Sturle Sunde	NF	no factor TF: 60-61
2003-08-08	-anonymous-	NF-PM1	B1=2048, B2=204800
1999-04-02	ANONYMOUS	C-LL	46B929FCF875E260
1999-03-01	ANONYMOUS	C-LL	46B929FCF875E260
1999-02-07	ANONYMOUS	NF	no factor TF: 1-58
1998-11-28	ANONYMOUS	NF	no factor TF: 1-58
1998-11-21	ANONYMOUS	NF	no factor TF: 1-58
1998-11-07	ANONYMOUS	NF	no factor TF: 1-58
1998-10-11	ANONYMOUS	NF	no factor TF: 1-58

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