5 504 717 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
262462576364268890399	21	67.8	2015-06-06 08:39:15

ECM

Digits	B1	Curves
25	50000	5 / 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)	1998-11-14	Marc Getty / Phil Fizur	A2EC48C3932019E8	0
Verified (Factored)	2000-08-17	Andrew Davie	A2EC48C3932019E8	1136856

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-04	Oliver Kruse	AF18DBD59AB6AF07	1	3809706	5	3
Verified	2018-03-25	kkmrkkblmbrbk	AF18DBD59AB6AF07	1	4263912	5	3

History

Date	User	Type	Result
2021-09-15	Dylan Delgado	NF-PM1	B1=2350000, B2=213850000
2018-03-25	kkmrkkblmbrbk	C-PRP	M5504717/262462576364268890399 : AF18DBD59AB6AF07 PRP: Verified PRP without proof (not generated)
2017-12-04	Oliver Kruse	C-PRP	M5504717/262462576364268890399 : AF18DBD59AB6AF07 PRP: Verified PRP without proof (not generated)
2015-06-06	Sid & Andy	F-ECM	Factor: 262462576364268890399
2014-12-02	monst	NF	no factor from 2^64 to 2^65
2014-12-01	Nesowa	NF	no factor from 2^63 to 2^64
2010-04-29	Squeeky_Squirrel	NF-PM1	B1=60000, B2=1035000, E=6
2009-05-01	GrunwalderGIMP	NF	no factor from 2^62 to 2^63