2 271 301 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Bits	Date
98369906397268020731071	76.4	2021-11-23 04:59:16

ECM

Digits	B1	Curves
25	50000	173 / 280

Estimated T-Level: 23.1 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Wayne Scott	6BD9378798E27642	0
Verified (Factored)	1999-03-01	James Arnold	6BD9378798E27642	1514709
Verified (Factored)	2018-04-26	kkmrkkblmbrbk	6BD9378798E27642	1950680

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-11-23	Tucker Kao	19E2C74C785F4E6B	1	1881485	5	3

History

Date	User	Type	Result
2021-11-23	Team_Inspector	CERT	PRP Certification Proof certified good
2021-11-23	Tucker Kao	C-PRP	M2271301/98369906397268020731071 : 19E2C74C785F4E6B PRP: Verified Proof certified good
2021-11-23	daveward2005	F-ECM	Factor: 98369906397268020731071 / (ECM curve 2, B1=50000, B2=5000000, Sigma=962509868491440)
2021-06-17	TJAOI	NF	no factor from 2^68 to 2^69
2019-10-01	BigBrother	NF-PM1	B1=3000000, B2=90000000, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-26	kkmrkkblmbrbk	C-LL	6BD9378798E27642
2017-01-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-13	Joss	NF-PM1	B1=373248, B2=13534036, E=12
2016-04-05	Joss	NF-PM1	B1=373248, B2=6718464, E=12
2016-04-02	Joss	NF-PM1	B1=311040
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-31	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-10	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-10	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-02	Joss	NF-PM1	B1=128259
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-06	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-02	markr	NF-PM1	B1=100000, B2=2100000, E=6
2010-11-13	Joss	NF-PM1	B1=30000
2010-11-06	Joss	NF-PM1	B1=15000
2009-01-16	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password