2 297 543 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
211008596033428016100743	24	77.5	2015-04-12 01:55:15

ECM

Digits	B1	Curves
25	50000	213 / 280

Estimated T-Level: 23.8 ⓘ

TF below 2^74 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-11-07	Wim de Lange	A15EA30E806CE795	0
Verified (Factored)	1999-03-15	Hgin normaalilyseo	A15EA30E806CE795	2221369

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	kkmrkkblmbrbk	D50270E36BA4C304	1	1189071	5	3
Verified	2017-10-30	Oliver Kruse	D50270E36BA4C304	1	682871	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-10-30	Oliver Kruse	C-PRP	M2297543/211008596033428016100743 : D50270E36BA4C304 PRP: Verified PRP without proof (not generated)
2017-10-12	kkmrkkblmbrbk	C-PRP	M2297543/211008596033428016100743 : D50270E36BA4C304 PRP: Verified PRP without proof (not generated)
2016-04-28	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-04-12	Jason U	F-ECM	Factor: 211008596033428016100743 / (ECM curve 3, B1=50000, B2=5000000)
2015-03-12	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-12	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-12-06	Jerry Hallett	NF	no factor from 2^62 to 2^63
2013-11-13	c10ck3r	NF-PM1	B1=500000, B2=10000000, E=12
2012-05-12	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-17	Oscar Östlin	NF-PM1	B1=90000, B2=1755000, E=6
2010-12-04	Oscar Östlin	NF-PM1	B1=75011
2010-11-15	Joss	NF-PM1	B1=20000
2010-11-07	Joss	NF-PM1	B1=15000
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61