1 732 271 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
321541579228769352067289	24	78.1	2018-02-06 13:31:35

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)		Ed Knapton	48F4C102779CB83B	0
Verified (Factored)	1998-12-21	Greg Presedo-Floyd	48F4C102779CB83B	963611
Verified (Factored)	2015-07-10	MadPoo	48F4C102779CB83B	1167941

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-02-09	Oliver Kruse	2622667E4EB2A89A	1	308551	5	3
Verified	2018-02-10	kkmrkkblmbrbk	2622667E4EB2A89A	1	428997	5	3

History

Date	User	Type	Result
2018-02-10	kkmrkkblmbrbk	C-PRP	M1732271/321541579228769352067289 : 2622667E4EB2A89A PRP: Verified PRP without proof (not generated)
2018-02-09	Oliver Kruse	C-PRP	M1732271/321541579228769352067289 : 2622667E4EB2A89A PRP: Verified PRP without proof (not generated)
2018-02-06	bam	F-ECM	Factor: 321541579228769352067289 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-09-19	mikr	NF-PM1	B1=3642200, B2=123456789, E=12
2015-09-15	Joss	NF-PM1	B1=1718930
2015-09-03	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-27	Joss	NF-PM1	B1=1562664
2015-07-21	Joss	NF-PM1	B1=1420604
2015-07-10	MadPoo	C-LL	48F4C102779CB83B
2015-07-07	Joss	NF-PM1	B1=1291459
2015-06-25	Joss	NF-PM1	B1=1174054
2015-06-08	Joss	NF-PM1	B1=1067322
2015-05-26	Joss	NF-PM1	B1=970293
2015-05-22	Joss	NF-PM1	B1=882085
2015-05-07	Joss	NF-PM1	B1=801896
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=728997
2015-04-08	Joss	NF-PM1	B1=602478
2015-03-15	Joss	NF-PM1	B1=497917
2015-03-08	Joss	NF-PM1	B1=452652
2015-02-22	Joss	NF-PM1	B1=411502
2015-02-11	Joss	NF-PM1	B1=374093
2015-01-29	Joss	NF-PM1	B1=281047
2015-01-27	Joss	NF-PM1	B1=255498
2014-12-02	Joss	NF-PM1	B1=211156
2014-09-10	Joss	NF-PM1	B1=174104
2014-05-06	Joss	NF-PM1	B1=137052
2014-04-04	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=95000, B2=1543750, E=6
2010-11-18	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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