5 820 079 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
264905149115553825689	21	67.8	2016-02-09 12:40:58

ECM

Digits	B1	Curves
25	50000	4 / 280

Estimated T-Level: 20.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-11-28	Larry T	8FE2CADA4CE330AA	0
Verified (Factored)	2000-10-22	galli	8FE2CADA4CE330AA	1187462

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	200C90484B8F7A80	1	0	1	3
Verified	2018-08-19	trebor	200C90484B8F7A80	1	4395405	1	3

History

Date	User	Type	Result
2018-08-19	trebor	C-PRP	M5820079/264905149115553825689 : 200C90484B8F7A80 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5820079/264905149115553825689 : 200C90484B8F7A80 PRP: Verified PRP without proof (not generated)
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-09	Conductor	F-ECM	Factor: 264905149115553825689 / (ECM curve 1, B1=50000, B2=5000000)
2015-09-13	snme2pm1	NF	no factor from 2^65 to 2^66
2014-10-18	lycorn	NF	no factor from 2^64 to 2^65
2014-10-09	Nesowa	NF	no factor from 2^63 to 2^64
2011-06-01	USAFSS	NF-PM1	B1=65000, B2=1088750, E=6