2 477 659 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
573759389824835910730607	24	78.9	2019-09-26 16:45:31

ECM

Digits	B1	Curves
25	50000	34 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Stefan Muth	DBB960962D5ED961	0
Verified (Factored)	1998-02-12	Kai-ming Poon	DBB960962D5ED961	0
Verified (Factored)	1999-05-23	Matthias Müller	DBB960962D5ED961	2015948

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-09-27	mnd9	669931ECDBE9A566	1	965115	5	3
Verified	2019-09-27	ATH	669931ECDBE9A566	1	1254195	5	3

History

Date	User	Type	Result
2019-09-27	ATH	C-PRP	M2477659/573759389824835910730607 : 669931ECDBE9A566 PRP: Verified PRP without proof (not generated)
2019-09-27	mnd9	C-PRP	M2477659/573759389824835910730607 : 669931ECDBE9A566 PRP: Verified PRP without proof (not generated)
2019-09-26	Chang Chia-Tche	F-ECM	Factor: 573759389824835910730607 / (ECM curve 1, B1=50000, B2=5000000, Sigma=5738966048006321)
2019-05-27	TJAOI	NF	no factor from 2^67 to 2^68
2017-07-22	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
2015-10-28	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-23	mikr	NF-PM1	B1=2382500, B2=85770100, E=12
2014-09-02	Joss	NF-PM1	B1=120905
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-08	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-21	Oscar Östlin	NF-PM1	B1=95000, B2=1947500, E=6
2010-11-20	Joss	NF-PM1	B1=20000
2009-01-16	Sturle Sunde	NF	no factor from 2^60 to 2^61