2 953 207 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
1606443336153778376203351	25	80.4	2009-04-05 18:03:05

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)		Kim Krger-Monsen	939D258E98588214	0
Verified (Factored)	1999-05-16	Lawrence Ng	939D258E98588214	2182209

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-26	Oliver Kruse	BA5338D17099BE26	1	2846873	5	3
Verified	2017-12-09	kkmrkkblmbrbk	BA5338D17099BE26	1	2387145	5	3

History

Date	User	Type	Result
2023-02-15	USAFSS	NF-PM1	B1=360000, B2=282695490
2017-12-09	kkmrkkblmbrbk	C-PRP	M2953207/1606443336153778376203351 : BA5338D17099BE26 PRP: Verified PRP without proof (not generated)
2017-10-26	Oliver Kruse	C-PRP	M2953207/1606443336153778376203351 : BA5338D17099BE26 PRP: Verified PRP without proof (not generated)
2009-04-05	Aca Arsov	F-ECM	Factor: 1606443336153778376203351
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61