8 334 701 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 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
78628116036673724137	20	66.1	2011-03-23 07:26:46

Status	Date	User	Residue	Shift	Software
Factored	2000-04-05	Jan M Kodet	6F6B0DFBC147E13E	6099086	Windows,Prime95,v19,(aka WV1)
Factored	2002-10-12	Jeffrey Kirk	6F6B0DFBC147E13E	7295972	Windows,Prime95,v21,NT service,(aka WX5)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-12	rucio	4F5BACD66B22CCE8	1	420985	5	3
Verified	PRP without proof (not generated)	2020-04-27	Team_Inspector	4F5BACD66B22CCE8	1	149523	5	3

History

Date	User	Type	Result
2025-01-02	Stef42	NF-PM1	B1=1125000, B2=1738013550
2020-04-27	Team_Inspector	C-PRP	M8334701/78628116036673724137 : 4F5BACD66B22CCE8
2018-10-12	rucio	C-PRP	M8334701/78628116036673724137 : 4F5BACD66B22CCE8
2011-03-23	Carsten Kossendey	F	Factor: 78628116036673724137
2002-10-12	-anonymous-	C-LL	6F6B0DFBC147E13E
2002-09-07	-anonymous-	NF-PM1	B1=35000, B2=35000
2000-04-05	-anonymous-	C-LL	6F6B0DFBC147E13E
1999-12-23	-anonymous-	NF	no factor TF: 1-64
1999-03-26	-anonymous-	NF	no factor TF: 1-63
1998-09-20	-anonymous-	NF	no factor TF: 1-62