2 182 303 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
199454817340042097937401	24	77.4	2017-11-02 11:03:24

ECM

Digits	B1	Curves
25	50000	127 / 280

Estimated T-Level: 22.3 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		phil kenny	F1C408E3AB59303B	0
Verified (Factored)	1999-02-21	Michael Bryan	F1C408E3AB59303B	227349

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-03	Oliver Kruse	24BA9FDD2D890A73	1	422089	5	3
Verified	2017-11-19	kkmrkkblmbrbk	24BA9FDD2D890A73	1	1496626	5	3

History

Date	User	Type	Result
2023-01-28	USAFSS	NF-PM1	B1=288000, B2=308189700
2017-11-19	kkmrkkblmbrbk	C-PRP	M2182303/199454817340042097937401 : 24BA9FDD2D890A73 PRP: Verified PRP without proof (not generated)
2017-11-03	Oliver Kruse	C-PRP	M2182303/199454817340042097937401 : 24BA9FDD2D890A73 PRP: Verified PRP without proof (not generated)
2017-11-02	Conductor	F-ECM	Factor: 199454817340042097937401 / (ECM curve 3, B1=50000, B2=5000000)
2016-11-24	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-01-28	Joss	NF-PM1	B1=443301, B2=4433010, E=6
2016-01-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=148822
2014-06-26	-Anonymous-	NF-PM1	B1=119411
2013-09-14	BloodIce	NF	no factor from 2^62 to 2^63
2011-01-14	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-08	Joss	NF-PM1	B1=30000
2010-11-05	Joss	NF-PM1	B1=15000
2009-01-07	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61