2 503 327 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
567195868335540525448433551	27	88.9	2020-07-23 04:22:10

ECM

Digits	B1	Curves
25	50000	57 / 280

Estimated T-Level: 21.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Steven Berry	F4EC5E6E04590272	0
Verified (Factored)	1999-06-26	Yuri Sorkin	F4EC5E6E04590272	421386
Verified (Factored)	2018-06-02	kkmrkkblmbrbk	F4EC5E6E04590272	517704

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-07-23	M Miller	F0DA5E31C29CCFA9	1	1518178	5	3
Verified	2020-07-24	marssystems	F0DA5E31C29CCFA9	1	1105597	5	3

History

Date	User	Type	Result
2020-07-24	marssystems	C-PRP	M2503327/567195868335540525448433551 : F0DA5E31C29CCFA9 PRP: Verified PRP without proof (not generated)
2020-07-23	M Miller	C-PRP	M2503327/567195868335540525448433551 : F0DA5E31C29CCFA9 PRP: Verified PRP without proof (not generated)
2020-07-23	GAN	F-ECM	Factor: 567195868335540525448433551 / (ECM curve 3, B1=50000, B2=5000000, Sigma=4060898102276803)
2019-05-20	TJAOI	NF	no factor from 2^67 to 2^68
2018-06-02	kkmrkkblmbrbk	C-LL	F4EC5E6E04590272
2018-04-06	mikr	NF-PM1	B1=3000000, B2=135000000, E=12
2017-11-01	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-07-29	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
2015-11-04	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-12	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-03-01	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-04	Joss	NF-PM1	B1=50000
2011-01-01	Joss	NF-PM1	B1=30000
2010-12-16	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61