2 742 893 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
182227304392166718449	21	67.3	2015-03-04 11:00:06

ECM

Digits	B1	Curves
25	50000	10 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Harry Henry Gebel	964F2D04C3937338	0
Verified (Factored)	1999-05-23	Bryan Hanks	964F2D04C3937338	234112

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-20	Oliver Kruse	C0EAFC2AC0A27763	1	962671	5	3
Verified	2017-12-05	kkmrkkblmbrbk	C0EAFC2AC0A27763	1	1438666	5	3

History

Date	User	Type	Result
2023-02-26	USAFSS	NF-PM1	B1=300000, B2=235127970
2017-12-05	kkmrkkblmbrbk	C-PRP	M2742893/182227304392166718449 : C0EAFC2AC0A27763 PRP: Verified PRP without proof (not generated)
2017-10-20	Oliver Kruse	C-PRP	M2742893/182227304392166718449 : C0EAFC2AC0A27763 PRP: Verified PRP without proof (not generated)
2015-03-04	Jason U	F-ECM	Factor: 182227304392166718449 / (ECM curve 1, B1=50000, B2=5000000)
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-05	markr	NF	no factor from 2^61 to 2^62
2011-04-30	James Heinrich	NF-PM1	B1=185000, B2=4625000, E=6
2011-01-21	Joss	NF-PM1	B1=50000
2010-12-29	Joss	NF-PM1	B1=30000
2010-12-21	Joss	NF-PM1	B1=20000
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61