2 477 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
10747613627429762072011012993421772392325246529786407371177	59	192.8	2019-04-14 21:26:46

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	40830 / 40830
60	260000000	88820 / 105362

Estimated T-Level: 59.2 ⓘ

TF below 2^192 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	4D7E	0
Verified (Factored)		George Woltman	0D068856EB13CD7E	0
Verified (Factored)		Brian J. Beesley	0D068856EB13CD7E	0
Verified (Factored)	2015-04-11	MadPoo	0D068856EB13CD7E	1312

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-15	M8909387	C8158951E7DAB807	1	1955	5	3
Verified	2019-04-15	matzetoni	C8158951E7DAB807	1	1189	5	3
Verified	2019-04-15	artorollo	C8158951E7DAB807	1	169	5	3
Verified	2020-04-17	Oliver Kruse	C8158951E7DAB807	1	1307	5	3

History

Date	User	Type	Result
2025-04-06	masser	NF-PP1	Start=108/37, B1=4400000000, B2=4395600000000
2020-04-17	Oliver Kruse	C-PRP	M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807 PRP: Verified PRP without proof (small exponent)
2019-04-15	artorollo	C-PRP	M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807 PRP: Verified PRP without proof (small exponent)
2019-04-15	matzetoni	C-PRP	M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807 PRP: Verified PRP without proof (small exponent)
2019-04-15	M8909387	C-PRP	M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807 PRP: Verified PRP without proof (small exponent)
2019-04-14	Ryan Propper	F-ECM	Factor: 10747613627429762072011012993421772392325246529786407371177
2018-11-06	Joss	NF-PM1	B1=200000000000, B2=18000000000000, E=12
2018-11-05	Joss	NF-PM1	B1=200000000000, B2=15000000000000, E=12
2018-11-02	Joss	NF-PM1	B1=200000000000, B2=7000000000000, E=12
2018-11-01	Joss	NF-PM1	B1=200000000000, B2=4000000000000, E=12
2018-10-31	Joss	NF-PM1	B1=200000000000, B2=2000000000000, E=12
2018-02-23	snme2pm1	NF	no factor from 2^63 to 2^64
2016-11-21	snme2pm1	NF	no factor from 2^62 to 2^63
2016-02-23	LaurV	NF	no factor from 2^57 to 2^58
2015-06-22	trebor	NF-PM1	B1=100000000000, B2=10000000000000, E=12
2015-05-27	snme2pm1	NF	no factor from 2^61 to 2^62
2015-04-11	MadPoo	C-LL	0D068856EB13CD7E
2013-06-19	BloodIce	NF-PM1	B1=120000000000
2012-05-22	bcp19	NF	no factor from 2^60 to 2^61
2011-05-22	Joss	NF-PM1	B1=20000000000
2011-01-08	monst	NF	no factor from 2^58 to 2^60
2009-09-24	James Hintz	NF-PM1	B1=10000000000, B2=200000000000, E=12

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