2 455 337 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
317545602681734006694857	24	78.1	2015-07-10 11:34:15

ECM

Digits	B1	Curves
25	50000	110 / 280

Estimated T-Level: 22.0 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Scott Kurowski	A5E1008F3EFCE37B	0
Verified (Factored)		Simon Burge	A5E1008F3EFCE37B	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-13	Oliver Kruse	D2B346D589C37A34	1	932345	5	3
Verified	2017-11-28	kkmrkkblmbrbk	D2B346D589C37A34	1	419598	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor from 2^1 to 2^60
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-28	kkmrkkblmbrbk	C-PRP	M2455337/317545602681734006694857 : D2B346D589C37A34 PRP: Verified PRP without proof (not generated)
2017-10-13	Oliver Kruse	C-PRP	M2455337/317545602681734006694857 : D2B346D589C37A34 PRP: Verified PRP without proof (not generated)
2015-07-10	guru	F-ECM	Factor: 317545602681734006694857 / (ECM curve 3, B1=50000, B2=5000000)
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-05-17	mikr	NF-PM1	B1=2382500, B2=85770100, E=12
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-07	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-19	Oscar Östlin	NF-PM1	B1=95000, B2=1947500, E=6
2010-12-22	Joss	NF-PM1	B1=20000
2009-01-13	Sturle Sunde	NF	no factor from 2^60 to 2^61