5 306 591 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁷⁰

TF target 2⁶⁶

Factored

Factor	Digits	Bits	Date
968344264648200797852137	24	79.7	old

Status	Date	User	Residue	Shift	Software
Factored	1998-07-11	Nephi Allred	EB4B566C9186F018	0	Windows,Prime95,v16,NT service,(aka WS5)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-11-25	storm5510	3AFA154AE402B7AB	1	3039596	5	3
Verified	PRP without proof (not generated)	2018-02-03	kkmrkkblmbrbk	3AFA154AE402B7AB	1	4270685	5	3

History

Date	User	Type	Result
2025-04-05	Sid & Andy	NF	no factor TF: 68-70
2025-03-28	Sid & Andy	NF-PM1	B1=5700000, B2=7179714360
2023-05-11	This -Anonymous-	NF-PM1	B1=50000, B2=1000000
2018-02-03	kkmrkkblmbrbk	C-PRP	M5306591/968344264648200797852137 : 3AFA154AE402B7AB
2017-11-25	storm5510	C-PRP	M5306591/968344264648200797852137 : 3AFA154AE402B7AB
2001-05-20	stevecs	F-PM1	Factor: 968344264648200797852137
2000-10-22	-anonymous-	C-LL	8A071E24B6E277__
1998-07-11	-anonymous-	C-LL	EB4B566C9186F018
1998-06-01	MadPoo 🙂	NF	no factor TF: 1-62
1998-02-24	-anonymous-	NF	no factor TF: 1-61