26 114 503 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷³

TF target 2⁷⁰

P-1

B1 =	1442307
B2 =	1427443290

Status	Date	User	Residue	Shift	Software
Bad	2005-05-28	Huang Nansong	47ACEDED3085FBF8	4996065	Windows,Prime95,v23,(aka WZ1)
Verified	2006-07-10	Dandot Moore	ED37955BD7A3A9DF	315569	Windows,Prime95,v23,(aka WZ1)
Verified	2012-07-03	Dubslow	ED37955BD7A3A9DF	26004238	Linux 64-bit,Prime95,v26,(aka We8)

History

Date	User	Type	Result
2024-12-02	timc995	NF-PM1	B1=1442307, B2=1427443290
2021-01-02	-anonymous-	NF	no factor TF: 72-73
2020-10-31	megavink	NF	no factor TF: 71-72
2020-10-31	megavink	NF	no factor TF: 70-71
2017-04-02	ramgeis	NF	no factor TF: 69-70
2012-07-03	Dubslow	C-LL	ED37955BD7A3A9DF
2011-12-27	bcp19	NF	no factor TF: 68-69
2011-10-26	David Campeau	NF	no factor TF: 67-68
2006-07-10	-anonymous-	C-LL	ED37955BD7A3A9DF
2005-05-28	-anonymous-	C-LL	47ACEDED3085FBF8
2004-11-03	-anonymous-	NF-PM1	B1=385000
2004-07-02	-anonymous-	NF	no factor TF: 1-67