2 704 193 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
430419991606264251284911	24	78.5	2020-10-29 09:35:13

ECM

Digits	B1	Curves
25	50000	61 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Bruce Bailey	EB2042F2A140DD5C	0
Verified (Factored)	1999-05-02	Vince Duggan	EB2042F2A140DD5C	2092321
Verified (Factored)	2018-07-31	kkmrkkblmbrbk	EB2042F2A140DD5C	1440770

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-29	mrh	A4A8C38DC9595335	1	49385	5	3

History

Date	User	Type	Result
2023-04-17	Kevin_9611	NF-PM1	B1=720000, B2=868549500
2020-10-29	Juza89	CERT	PRP Certification Proof certified good
2020-10-29	mrh	C-PRP	M2704193/430419991606264251284911 : A4A8C38DC9595335 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-29	mnd9	F-ECM	Factor: 430419991606264251284911 / (ECM curve 5, B1=50000, B2=5000000, Sigma=8808958297347993)
2019-02-11	chuenkit	NF	no factor from 2^67 to 2^68
2018-07-31	kkmrkkblmbrbk	C-LL	EB2042F2A140DD5C
2018-07-23	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-09-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-29	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-06	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-03-20	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-18	Joss	NF-PM1	B1=50000
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-16	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61