3 621 263 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1378859225470496080322001277601	31	100.1	2017-11-22 10:57:43

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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)	1998-03-17	David Lambert	46368FD140FD0974	0
Verified (Factored)	1999-07-30	Brian Hamrin	46368FD140FD0974	3617741

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-23	kkmrkkblmbrbk	36A843E81DD05754	1	2547345	5	3
Verified	2017-11-26	Oliver Kruse	36A843E81DD05754	1	1833496	5	3

History

Date	User	Type	Result
2022-05-24	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-05	Joss	NF-PM1	B1=90000
2017-11-26	Oliver Kruse	C-PRP	M3621263/1378859225470496080322001277601 : 36A843E81DD05754 PRP: Verified PRP without proof (not generated)
2017-11-23	kkmrkkblmbrbk	C-PRP	M3621263/1378859225470496080322001277601 : 36A843E81DD05754 PRP: Verified PRP without proof (not generated)
2017-11-22	mikr	F-ECM	Factor: 1378859225470496080322001277601 / (ECM curve 4, B1=250000, B2=25000000)
2016-03-15	mikr	NF-PM1	B1=8000000, B2=240000000, E=12
2016-01-08	ramgeis	NF	no factor from 2^70 to 2^71
2014-04-02	ramgeis	NF	no factor from 2^69 to 2^70
2014-04-02	ramgeis	NF	no factor from 2^68 to 2^69
2014-04-02	ramgeis	NF	no factor from 2^67 to 2^68
2014-04-02	ramgeis	NF	no factor from 2^66 to 2^67
2012-03-21	Never Odd Or Even	NF	no factor from 2^65 to 2^66
2012-03-21	Never Odd Or Even	NF	no factor from 2^64 to 2^65
2012-03-21	Never Odd Or Even	NF	no factor from 2^63 to 2^64
2012-03-21	Never Odd Or Even	NF	no factor from 2^62 to 2^63
2011-12-21	markr	NF-PM1	B1=240000, B2=6180000, E=12
2011-06-01	markr	NF	no factor to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-12	S485122	NF	no factor from 2^60 to 2^61

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