On 3 November 2016, 23:35:42 UTC, PrimeGrid’s AP27 Search (Arithmetic Progression of 27 primes) found the progression of 26 primes:
149836681069944461+7725290*23#*n for n=0..25
The discovery was made by Takeshi Nakamura (kurogane-t) of Japan using a NVIDIA GTX 1070 on an Intel(R) Xeon(R) E5-2667 v3 @ 3.20GHz with 16GB RAM, running Windows 10 Core x64 Edition. This computer took about 30 minutes to process the task (each task tests 100 progression differences of 10 shifts each). Takeshi is a member of the BOINC@MIXI team.
The progression was verified on 4 November 2016 03:37:51 UTC, by James Nobis (quel) of the United States using an AMD Tahiti GPU on an AMD Opteron(tm) 3648 CPU running Linux. This computer took about 1 hour 21 minutes to process the task. James is a member of the Sicituradastra. team.
The AP26 will be listed in Jens Kruse Andersen's Primes in Arithmetic Progression Records page under the section(s):
• All known AP24 to AP26
For all APs found 23 and greater, please see PrimeGrid's AP26 Statistics.
For more details, please see the official announcement.