2 742 799 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2910637949924405518821551	25	81.3	2020-08-15 21:38:00

ECM

Digits	B1	Curves
25	50000	39 / 280

Estimated T-Level: 20.7 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		stanislaw rzymski	3BB1032DB51EEC0A	1549944
Verified (Factored)	1998-04-05	Bjorn Nexo	3BB1032DB51EEC0A	0
Bad	1999-05-02	Nick Hilliard	3ECC83024C4E0DB6	1385496
Verified (Factored)	2000-03-22	David Campeau	3BB1032DB51EEC0A	1855310

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-08-15	Xyzzy	F4F276F5ACB38926	1	1705833	5	3

History

Date	User	Type	Result
2023-04-18	Kevin_9611	NF-PM1	B1=3300000, B2=4356785160
2020-08-16	Architects Cubed	CERT	PRP Certification Proof certified good
2020-08-15	Xyzzy	C-PRP	M2742799/2910637949924405518821551 : F4F276F5ACB38926 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-15	GAN	F-ECM	Factor: 2910637949924405518821551 / (ECM curve 3, B1=50000, B2=5000000, Sigma=5654550753408381)
2019-02-18	chuenkit	NF	no factor from 2^67 to 2^68
2018-04-09	Joss	NF-PM1	B1=2742799, B2=5462238, E=6
2017-10-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-08-01	Joss	NF-PM1	B1=1651119, B2=3302238, E=6
2016-05-08	Numberwang	NF-PM1	B1=15000, B2=123750
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-02-03	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-07	Joss	NF-PM1	B1=1651119
2015-06-25	Joss	NF-PM1	B1=1501018
2015-06-08	Joss	NF-PM1	B1=1364562
2015-05-22	Joss	NF-PM1	B1=1240511
2015-05-07	Joss	NF-PM1	B1=1127738
2015-05-01	Joss	NF-PM1	B1=1025217
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2015-04-08	Joss	NF-PM1	B1=847288
2015-03-17	Joss	NF-PM1	B1=700239
2014-10-18	Joss	NF-PM1	B1=123401
2014-04-21	Joss	NF-PM1	B1=100000
2014-04-16	Joss	NF-PM1	B1=60000
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-05	markr	NF	no factor from 2^61 to 2^62
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password