1 725 233 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
23780918273974220957487863	26	84.3	2020-03-21 17:23:54

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)		Robert R. Covelli	92A8D6AD08D9564F	0
Verified (Factored)	1998-12-06	Pete Isensee	92A8D6AD08D9564F	278004
Verified (Factored)	2015-06-28	MadPoo	92A8D6AD08D9564F	1234273

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-03-22	oodaira	35565D4D5C97507D	1	1648446	5	3
Verified	2020-03-25	daveward2005	35565D4D5C97507D	1	505573	5	3

History

Date	User	Type	Result
2020-03-25	daveward2005	C-PRP	M1725233/23780918273974220957487863 : 35565D4D5C97507D PRP: Verified PRP without proof (not generated)
2020-03-22	oodaira	C-PRP	M1725233/23780918273974220957487863 : 35565D4D5C97507D PRP: Verified PRP without proof (not generated)
2020-03-21	mnd9	F-ECM	Factor: 23780918273974220957487863 / (ECM curve 3, B1=50000, B2=5000000, Sigma=1750146661672615)
2019-07-24	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-17	Joss	NF-PM1	B1=1725233, B2=189775630, E=12
2018-10-12	Joss	NF-PM1	B1=1725233, B2=172523300, E=12
2018-10-07	Joss	NF-PM1	B1=1725233, B2=69009320, E=12
2018-10-03	Joss	NF-PM1	B1=1725233, B2=17252330, E=12
2018-04-09	TJAOI	NF	no factor from 2^66 to 2^67
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
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-09-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-08-31	mikr	NF-PM1	B1=3642200, B2=123456789, E=12
2015-07-24	Joss	NF-PM1	B1=1561227
2015-07-21	Joss	NF-PM1	B1=1419298
2015-07-07	Joss	NF-PM1	B1=1290271
2015-06-28	MadPoo	C-LL	92A8D6AD08D9564F
2015-06-25	Joss	NF-PM1	B1=1172974
2015-06-08	Joss	NF-PM1	B1=1066340
2015-05-26	Joss	NF-PM1	B1=969400
2015-05-22	Joss	NF-PM1	B1=881273
2015-05-07	Joss	NF-PM1	B1=801158
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=728326
2015-04-08	Joss	NF-PM1	B1=601923
2015-03-14	Joss	NF-PM1	B1=497458
2015-03-06	Joss	NF-PM1	B1=452235
2015-02-22	Joss	NF-PM1	B1=411123
2015-02-11	Joss	NF-PM1	B1=373749
2015-01-09	Joss	NF-PM1	B1=280804
2014-10-03	Joss	NF-PM1	B1=187203
2014-05-04	Joss	NF-PM1	B1=150000
2014-04-04	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=90000, B2=1507500, E=6
2010-10-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-22	Architects Cubed	NF	no factor from 2^60 to 2^61

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