5 171 459 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
243335537338845431657	21	67.7	2009-08-23 18:36:45

Status	Date	User	Residue	Shift
Verified (Factored)	1998-07-29	Michael Hanscho	8708F1AC300FC63C	0
Verified (Factored)	2000-06-23	Adrian Grint	8708F1AC300FC63C	1627873

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	AC2B825CFF711882	1	0	1	3
Verified	2018-05-22	Oliver Kruse	AC2B825CFF711882	1	4325779	1	3

History

Date	User	Type	Result
2023-05-11	This -Anonymous-	NF-PM1	B1=50000, B2=1000000
2023-03-18	USAFSS	NF-PM1	B1=256000, B2=118334790
2018-05-22	Oliver Kruse	C-PRP	M5171459/243335537338845431657 : AC2B825CFF711882 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5171459/243335537338845431657 : AC2B825CFF711882 PRP: Verified PRP without proof (not generated)
2009-08-23	Carsten Kossendey	F-PM1	Factor: 243335537338845431657
2009-06-24	GrunwalderGIMP	NF	no factor from 2^62 to 2^63