1 336 039 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
48228857111723335783591	23	75.4	2014-07-02 02:04:54

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Lapo Luchini	58EC25458832927D	0
Verified (Factored)		Cornelius Caesar	58EC25458832927D	0
Verified (Factored)	2010-03-17	Bruce A Metcalf	58EC25458832927D	1001615

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	Oliver Kruse	A3230A9D9321F0B2	1	0	1	3
Verified	2017-10-24	kkmrkkblmbrbk	A3230A9D9321F0B2	1	1154676	1	3

P-1 factors

Date	Factor	B1	B2
2014-07-02	48228857111723335783591	4081679	0

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2017-10-24	kkmrkkblmbrbk	C-PRP	M1336039/48228857111723335783591 : A3230A9D9321F0B2 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1336039/48228857111723335783591 : A3230A9D9321F0B2 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-07-02	mikr	F-PM1	Factor: 48228857111723335783591 / (P-1, B1=4081679)
2014-04-27	-Anonymous-	NF-PM1	B1=175000
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-09-18	Axelsson	NF	no factor from 2^61 to 2^62
2009-04-14	Sturle Sunde	NF	no factor from 2^60 to 2^61