1 707 523 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
19949248042804049822073200696401	32	104.0	2023-06-21 16:06:11

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	141 / 640

Estimated T-Level: 26.1 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Bruce Appleby	D9DF228D429AEF8E	0
Bad	1998-11-21	Bruce Mitchell	574631364D9EF03E	481635
Verified (Factored)	1999-03-01	Michel Coste	D9DF228D429AEF8E	503002
Verified (Factored)	2015-06-27	MadPoo	D9DF228D429AEF8E	1620952

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-06-21	linament	C127B31B7A3CDCFC	1	1179115	5	3

P-1 factors

Date	Factor	B1	B2
2023-06-21	19949248042804049822073200696401	17000000	285831696150

History

Date	User	Type	Result
2023-06-21	LordJulius	CERT	PRP Certification Proof certified good
2023-06-21	linament	C-PRP	M1707523/19949248042804049822073200696401 : C127B31B7A3CDCFC PRP proof power = 7 PRP: Verified Proof certified good
2023-06-21	linament	F-PM1	Factor: 19949248042804049822073200696401 / (P-1, B1=17000000, B2=285831696150)
2023-06-20	linament	NF-PM1	B1=17000000
2023-03-14	Joss	NF-PM1	B1=1707523, B2=3510198510
2022-12-19	Joss	NF-PM1	B1=1707523, B2=1252093920
2021-05-05	Carlos Pinho	NF-PP1	Start=2/7, B1=1000000, B2=51000000
2019-07-17	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-16	Joss	NF-PM1	B1=1707523, B2=187827530, E=12
2018-06-15	Joss	NF-PM1	B1=1707523, B2=170752300, E=12
2018-06-15	Joss	NF-PM1	B1=1707523, B2=123456789, E=12
2018-06-11	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
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
2015-08-31	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-24	mikr	NF-PM1	B1=3642200, B2=123456789, E=12
2015-07-21	Joss	NF-PM1	B1=1564451
2015-07-13	Joss	NF-PM1	B1=1422229
2015-07-07	Joss	NF-PM1	B1=1292936
2015-06-27	MadPoo	C-LL	D9DF228D429AEF8E
2015-06-25	Joss	NF-PM1	B1=1175397
2015-06-08	Joss	NF-PM1	B1=1068543
2015-05-26	Joss	NF-PM1	B1=971403
2015-05-22	Joss	NF-PM1	B1=883094
2015-05-07	Joss	NF-PM1	B1=802813
2015-05-01	Joss	NF-PM1	B1=729830
2015-04-28	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-28	snme2pm1	NF	no factor from 2^63 to 2^64
2015-04-08	Joss	NF-PM1	B1=603166
2015-03-14	Joss	NF-PM1	B1=498485
2015-03-05	Joss	NF-PM1	B1=453169
2015-02-23	Joss	NF-PM1	B1=411972
2015-02-13	Joss	NF-PM1	B1=374520
2015-01-07	Joss	NF-PM1	B1=281383
2014-10-05	Joss	NF-PM1	B1=187589
2014-04-28	-Anonymous-	NF-PM1	B1=150000
2014-03-31	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=90000, B2=1507500, E=6
2011-01-29	Joss	NF-PM1	B1=50000
2010-10-16	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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