503 743 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
692540178923196566098087536407	30	99.1	2013-01-14 12:33:42

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	218 / 640

Estimated T-Level: 26.7 ⓘ

TF below 2^84 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	1EFC	0
Verified (Factored)		David Linton	7A0F6DD8753A9EFC	0
Verified (Factored)		Stellios Zographos	7A0F6DD8753A9EFC	0
Verified (Factored)		Peter Monks	7A0F6DD8753A9EFC	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-27	Oliver Kruse	643A32F46EEA45AF	1	0	1	3
Verified	2017-09-28	Oliver Kruse	643A32F46EEA45AF	1	0	1	3
Verified	2017-11-09	kkmrkkblmbrbk	643A32F46EEA45AF	1	60689	1	3
Unverified (Reliable)	2020-04-19	Oliver Kruse	99A7B70B33996A__	1	172084	5	3

P-1 factors

Date	Factor	B1	B2
2013-01-14	692540178923196566098087536407	25000000	1000000000

History

Date	User	Type	Result
2021-05-13	gLauss	NF-PP1	Start=2/7, B1=5000000, B2=365000000
2021-05-13	gLauss	NF-PM1	B1=10000000, B2=820000000
2020-04-19	Oliver Kruse	C-PRP	M503743/692540178923196566098087536407 : 99A7B70B33996A__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-09	kkmrkkblmbrbk	C-PRP	M503743/692540178923196566098087536407 : 643A32F46EEA45AF PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M503743/692540178923196566098087536407 : 643A32F46EEA45AF PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-27	Oliver Kruse	C-PRP	M503743/692540178923196566098087536407 : 643A32F46EEA45AF PRP: Unverified (Reliable) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=1500000, B2=50000000, E=12
2013-01-14	markr	F-PM1	Factor: 692540178923196566098087536407
2012-06-19	Joss	NF-PM1	B1=2424750
2012-05-07	LaurV	NF	no factor from 2^63 to 2^64
2010-12-31	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-12-30	Rob_Dee	NF-PM1	B1=500000, B2=1000000
2010-10-06	GrunwalderGIMP	NF	no factor from 2^62 to 2^63
2010-10-06	GrunwalderGIMP	NF	no factor from 2^61 to 2^62
2010-10-06	GrunwalderGIMP	NF	no factor from 2^60 to 2^61