4 054 621 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
4419402788794961689	19	61.9	2010-10-13 03:58:51

ECM

Digits	B1	Curves
25	50000	3 / 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)	1998-04-11	Michael Reel	41BEBC4604538BD5	0
Verified (Factored)	1999-10-15	BJ van Galen	41BEBC4604538BD5	262838

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-12	kkmrkkblmbrbk	A7C22FA130E62B77	1	924713	5	3
Verified	2018-01-09	nokno	E3F8255FA9EB736F	1	0	1	3
Verified	2018-01-11	Oliver Kruse	A7C22FA130E62B77	1	3591921	5	3
Verified	2018-01-11	kkmrkkblmbrbk	E3F8255FA9EB736F	1	2866621	1	3

History

Date	User	Type	Result
2023-03-02	USAFSS	NF-PM1	B1=220000, B2=119776800
2018-01-11	kkmrkkblmbrbk	C-PRP	M4054621/4419402788794961689 : E3F8255FA9EB736F PRP: Verified PRP without proof (not generated)
2018-01-11	Oliver Kruse	C-PRP	M4054621/4419402788794961689 : A7C22FA130E62B77 PRP: Verified PRP without proof (not generated)
2018-01-09	nokno	C-PRP	M4054621/4419402788794961689 : E3F8255FA9EB736F PRP: Verified PRP without proof (not generated)
2017-11-12	kkmrkkblmbrbk	C-PRP	M4054621/4419402788794961689 : A7C22FA130E62B77 PRP: Verified PRP without proof (not generated)
2010-10-13	Grant McCracken	F	Factor: 4419402788794961689
2009-07-17	Carsten Kossendey	NF-PM1	B1=20000, B2=300000