8 327 303 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
1645507144682029862641	22	70.5	old

Status	Date	User	Residue	Shift	Software
Factored	2000-03-15	Upper Silesia	6EF88F254CB79E25	6745752	Windows,Prime95,v18,(aka WU1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-11	rucio	E54598EB41904817	1	2086514	5	3
Verified	PRP without proof (not generated)	2020-04-22	Oliver Kruse	E54598EB41904817	1	8105008	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2725257990
2020-04-22	Oliver Kruse	C-PRP	M8327303/1645507144682029862641 : E54598EB41904817
2018-10-11	rucio	C-PRP	M8327303/1645507144682029862641 : E54598EB41904817
2002-09-07	binarydigits	NF	no factor TF: 1-64
2002-09-07	binarydigits	F-PM1	Factor: 1645507144682029862641
2000-03-15	-anonymous-	C-LL	6EF88F254CB79E25
1999-04-23	-anonymous-	NF	no factor TF: 1-63
1998-09-13	-anonymous-	NF	no factor TF: 1-62