26 036 711 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 =	285000
B2 =	3633750

Status	Date	User	Residue	Shift	Software
Bad	2004-11-30	Matt Pickering	B8ECB3700CAA9059	24797728	Linux 32-bit,Prime95,v23,(aka WZ2)
Verified	2005-05-28	Darek Mihocka	AB93E677152CB7F9	3030494	Windows,Prime95,v23,(aka WZ1)
Verified	2012-02-04	Dubslow	AB93E677152CB7F9	23981312	Linux 64-bit,Prime95,v26.6,build 3

History

Date	User	Type	Result
2021-08-26	TheJudger	NF	no factor TF: 72-73
2021-08-26	TheJudger	NF	no factor TF: 71-72
2021-04-10	mikr	NF	no factor TF: 70-71
2017-03-31	ramgeis	NF	no factor TF: 69-70
2012-02-04	Dubslow	C-LL	AB93E677152CB7F9
2011-12-27	bcp19	NF	no factor TF: 68-69
2011-12-26	David Campeau	NF	no factor TF: 67-68
2005-05-28	Darek Mihocka	C-LL	AB93E677152CB7F9
2004-11-30	-anonymous-	C-LL	B8ECB3700CAA9059
2004-10-18	-anonymous-	NF-PM1	B1=285000, B2=3633750
2004-07-02	tsc	NF	no factor TF: 1-67