2 423 569 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
9879363847635179124673	22	73.1	2020-10-19 17:07:36

ECM

Digits	B1	Curves
25	50000	86 / 280

Estimated T-Level: 21.5 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		John Lloyd	67B79821F312E983	0
Verified (Factored)	1999-04-13	M. Medenis	67B79821F312E983	240604
Verified (Factored)	2018-05-20	kkmrkkblmbrbk	67B79821F312E983	209163

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-20	tottenhoff	593EB619CBECA3EC	1	2093191	5	3

History

Date	User	Type	Result
2020-10-20	ANONYMOUS	CERT	PRP Certification Proof certified good
2020-10-20	tottenhoff	C-PRP	M2423569/9879363847635179124673 : 593EB619CBECA3EC PRP proof power = 7 PRP: Verified Proof certified good
2020-10-19	mnd9	F-ECM	Factor: 9879363847635179124673 / (ECM curve 7, B1=50000, B2=5000000, Sigma=8732287672764347)
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-20	kkmrkkblmbrbk	C-LL	67B79821F312E983
2017-07-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-10-23	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-04-18	mikr	NF-PM1	B1=1986400, B2=69524000, E=12
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-04	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-24	Oscar Östlin	NF-PM1	B1=95000, B2=1923750, E=6
2010-11-14	Oscar Östlin	NF-PM1	B1=75011
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61