5 784 529 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
121775790746543843039887	24	76.7	2015-12-19 12:09:11

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)	1998-09-20	Shayne Hodge	C38BB6DBCD922724	0
Verified (Factored)	2000-10-07	Marc Getty / Phil Fizur	C38BB6DBCD922724	719030

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	DE04606A115CE0C2	1	0	1	3
Verified	2018-08-11	Oliver Kruse	DE04606A115CE0C2	1	3487395	1	3

History

Date	User	Type	Result
2018-08-11	Oliver Kruse	C-PRP	M5784529/121775790746543843039887 : DE04606A115CE0C2 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5784529/121775790746543843039887 : DE04606A115CE0C2 PRP: Verified PRP without proof (not generated)
2015-12-19	Conductor	F-ECM	Factor: 121775790746543843039887 / (ECM curve 1, B1=50000, B2=5000000)
2015-09-09	snme2pm1	NF	no factor from 2^65 to 2^66
2014-11-03	monst	NF	no factor from 2^64 to 2^65
2014-11-03	Nesowa	NF	no factor from 2^63 to 2^64
2011-02-22	markr	NF-PM1	B1=105000, B2=1968750, E=6
2009-03-27	GrunwalderGIMP	NF	no factor from 2^62 to 2^63