2 759 227 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
15958248436761853070236471	26	83.7	2021-09-03 21:56:36

ECM

Digits	B1	Curves
25	50000	111 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Roy Harris	82FB57CFD3982999	0
Verified (Factored)	1999-06-26	Smegheads	82FB57CFD3982999	330484
Verified (Factored)	2018-08-16	kkmrkkblmbrbk	82FB57CFD3982999	810131

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-09-05	SRJ2877	262D369D7013EB97	1	1374920	5	3

History

Date	User	Type	Result
2021-09-05	curtisc	CERT	PRP Certification Proof certified good
2021-09-05	SRJ2877	C-PRP	M2759227/15958248436761853070236471 : 262D369D7013EB97 PRP proof power = 7 PRP: Verified Proof certified good
2021-09-03	daveward2005	F-ECM	Factor: 15958248436761853070236471 / (ECM curve 5, B1=50000, B2=5000000, Sigma=579103848057693)
2021-06-14	TJAOI	NF	no factor from 2^68 to 2^69
2019-02-21	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-16	kkmrkkblmbrbk	C-LL	82FB57CFD3982999
2017-10-09	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-01-10	Joss	NF-PM1	B1=228000
2017-01-06	mikr	NF-PM1	B1=2700000, B2=84000000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-05	ramgeis	NF	no factor from 2^65 to 2^66
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
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-21	markr	NF	no factor from 2^61 to 2^62
2011-05-09	James Heinrich	NF-PM1	B1=190000, B2=4655000, E=6
2011-01-23	Joss	NF-PM1	B1=50000
2011-01-02	Joss	NF-PM1	B1=30000
2010-12-21	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password