2 356 069 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
9572084033906849019623	22	73.0	2020-10-16 13:16:40

ECM

Digits	B1	Curves
25	50000	99 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Gary Untermeyer	2DB62B800DFF2ED1	0
Verified (Factored)	1999-07-27	Jean-Yves Canart	2DB62B800DFF2ED1	1397008
Verified (Factored)	2018-05-10	kkmrkkblmbrbk	2DB62B800DFF2ED1	422418

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-17	mrh	0E228275008036BB	1	1723623	5	3

History

Date	User	Type	Result
2020-10-17	curtisc	CERT	PRP Certification Proof certified good
2020-10-17	mrh	C-PRP	M2356069/9572084033906849019623 : 0E228275008036BB PRP proof power = 7 PRP: Verified Proof certified good
2020-10-16	mnd9	F-ECM	Factor: 9572084033906849019623 / (ECM curve 6, B1=50000, B2=5000000, Sigma=903476716015137)
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-10	kkmrkkblmbrbk	C-LL	2DB62B800DFF2ED1
2017-06-13	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
2015-10-28	ramgeis	NF	no factor from 2^65 to 2^66
2015-08-06	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2015-03-06	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-06	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-22	Joss	NF-PM1	B1=144484
2014-08-07	Joss	NF-PM1	B1=117242
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-29	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-23	Oscar Östlin	NF-PM1	B1=90000, B2=1822500, E=6
2010-12-04	Oscar Östlin	NF-PM1	B1=75011
2010-11-04	Joss	NF-PM1	B1=20000
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61