2 845 433 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
6962234569150456873	19	62.6	2016-09-07 11:11:14
910915308162347537239	21	69.6	2009-03-23 00:54:09

ECM

Digits	B1	Curves
25	50000	4 / 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)		Mika Halonen	367D35F26F26B131	0
Verified (Factored)	1999-06-06	Craig Cantello	367D35F26F26B131	29821

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-22	Oliver Kruse	9D23876E06C6E8A1	2	2098937	5	3
Verified	2017-12-07	kkmrkkblmbrbk	9D23876E06C6E8A1	2	267253	5	3

History

Date	User	Type	Result
2023-02-01	USAFSS	NF-PM1	B1=360000, B2=287380170
2022-03-10	LordJulius	NF	no factor from 2^61 to 2^62
2017-12-07	kkmrkkblmbrbk	C-PRP	M2845433/910915308162347537239/6962234569150456873 : 9D23876E06C6E8A1 PRP: Verified PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2845433/910915308162347537239/6962234569150456873 : 9D23876E06C6E8A1 PRP: Verified PRP without proof (not generated)
2016-09-07	TJAOI	F	Factor: 6962234569150456873 / TF: 62-63
2009-03-23	Aca Arsov	F-ECM	Factor: 910915308162347537239
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61
2008-10-31	Jayson King	NF-PM1	B1=35000, B2=560000