1 726 691 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
154404023423760648799	21	67.1	2015-12-17 03:23:48

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		John Lloyd	2CA2250FCEC30D11	0
Verified (Factored)	1998-11-21	Robert Mutschler	2CA2250FCEC30D11	1423395
Verified (Factored)	2015-07-18	MadPoo	2CA2250FCEC30D11	1629311

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	4659B7CCBCFF9D5F	1	0	1	3
Verified	2017-10-19	Oliver Kruse	4659B7CCBCFF9D5F	1	504168	1	3

History

Date	User	Type	Result
2017-10-19	Oliver Kruse	C-PRP	M1726691/154404023423760648799 : 4659B7CCBCFF9D5F PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1726691/154404023423760648799 : 4659B7CCBCFF9D5F PRP: Verified PRP without proof (not generated)
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-12-17	mikr	F-ECM	Factor: 154404023423760648799 / (ECM curve 11, B1=50000, B2=5000000)
2015-09-05	mikr	NF-PM1	B1=3642200, B2=123456789, E=12
2015-09-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-24	Joss	NF-PM1	B1=1560969
2015-07-21	Joss	NF-PM1	B1=1419063
2015-07-18	MadPoo	C-LL	2CA2250FCEC30D11
2015-07-07	Joss	NF-PM1	B1=1290058
2015-06-25	Joss	NF-PM1	B1=1172780
2015-06-08	Joss	NF-PM1	B1=1066164
2015-05-26	Joss	NF-PM1	B1=969240
2015-05-22	Joss	NF-PM1	B1=881128
2015-05-07	Joss	NF-PM1	B1=801026
2015-05-04	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-04	snme2pm1	NF	no factor from 2^63 to 2^64
2015-05-01	Joss	NF-PM1	B1=728206
2015-04-08	Joss	NF-PM1	B1=601824
2015-03-15	Joss	NF-PM1	B1=497376
2015-03-08	Joss	NF-PM1	B1=452160
2015-02-21	Joss	NF-PM1	B1=411055
2015-02-11	Joss	NF-PM1	B1=373687
2015-01-09	Joss	NF-PM1	B1=280758
2014-10-03	Joss	NF-PM1	B1=187172
2014-05-04	Joss	NF-PM1	B1=150000
2014-04-04	Joss	NF-PM1	B1=100000
2011-02-09	Carsten Kossendey	NF-PM1	B1=90000, B2=1530000, E=6
2010-10-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-23	Architects Cubed	NF	no factor from 2^60 to 2^61

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