4 195 969 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
4844811213603396697	19	62.1	2009-12-01 11:22:56

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-16	Juanma Barranquero	5E1421EB01D2D29E	0
Verified (Factored)	2000-01-12	Lee Jackson	5E1421EB01D2D29E	1813268

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	B3679158456724BD	1	0	1	3
Verified	2018-01-20	Oliver Kruse	B3679158456724BD	1	1572034	1	3

History

Date	User	Type	Result
2023-03-07	USAFSS	NF-PM1	B1=224000, B2=135233670
2018-01-20	Oliver Kruse	C-PRP	M4195969/4844811213603396697 : B3679158456724BD PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4195969/4844811213603396697 : B3679158456724BD PRP: Verified PRP without proof (not generated)
2009-12-01	Aca Arsov	F-ECM	Factor: 4844811213603396697
2009-08-03	Carsten Kossendey	NF-PM1	B1=25000, B2=337500