2 829 913 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
5478651435117536879201	22	72.2	2013-04-07 12:14:58

ECM

Digits	B1	Curves
25	50000	8 / 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)		Klaus Kastens	263F4A88DA4A5CE3	0
Verified (Factored)	1998-05-08	Brian O'Kelley	263F4A88DA4A5CE3	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-22	Oliver Kruse	3350DCA343BDEF06	1	1311584	5	3
Verified	2017-12-07	kkmrkkblmbrbk	3350DCA343BDEF06	1	351763	5	3

History

Date	User	Type	Result
2023-01-31	USAFSS	NF-PM1	B1=360000, B2=287380170
2022-03-10	LordJulius	NF	no factor from 2^1 to 2^60
2017-12-07	kkmrkkblmbrbk	C-PRP	M2829913/5478651435117536879201 : 3350DCA343BDEF06 PRP: Verified PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2829913/5478651435117536879201 : 3350DCA343BDEF06 PRP: Verified PRP without proof (not generated)
2013-04-07	hiems	F-ECM	Factor: 5478651435117536879201
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-12	markr	NF	no factor from 2^61 to 2^62
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61