6 444 353 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
25485758642191745783	20	64.5	2011-12-13 04:53:48

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)	1999-12-08	Will Wilkinson	6110993F8DF6B4B1	4944911
Verified (Factored)	2001-07-17	Bernd Warnecke	6110993F8DF6B4B1	3597063

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-17	Oliver Kruse	C3B64A1DA339A493	1	933641	5	3
Verified	2018-07-18	kkmrkkblmbrbk	C3B64A1DA339A493	1	1530628	5	3

History

Date	User	Type	Result
2023-05-11	This -Anonymous-	NF-PM1	B1=100000, B2=2000000, E=6
2018-07-18	kkmrkkblmbrbk	C-PRP	M6444353/25485758642191745783 : C3B64A1DA339A493 PRP: Verified PRP without proof (not generated)
2017-12-17	Oliver Kruse	C-PRP	M6444353/25485758642191745783 : C3B64A1DA339A493 PRP: Verified PRP without proof (not generated)
2011-12-13	JimBa	F-ECM	Factor: 25485758642191745783
2009-06-21	Carsten Kossendey	NF-PM1	B1=35000, B2=498750