PrimeGrid

PrimeGrid
Area:	Prime number tests
Target:	Various primality tests
Country:	Lithuania
Platform:	BOINC
Website:	https://www.primegrid.com/
Project status
Status:	active
Start:	July 2005
The End:	still active

PrimeGrid is a volunteer computing project with several sub - projects that uses the technology of distributed computing to search for special prime numbers . If a prime number database was originally created, today one searches for a multitude of prime numbers in a special form.

The project was officially started in July 2005. The basis of the calculations is the BOINC software from the University of California, Berkeley .

The project found the largest known twin primes , Woodall and Cullen primes , among others .

Sub-projects

• 321 Prime Search : searches for prime numbers with more than 1,000,000 decimal places of the form . ${\displaystyle 3\cdot 2^{n}\pm 1}$
• Cullen-Woodall Search : searches for prime numbers with more than 1,000,000 decimal places of the forms (see Cullen or Woodall number ). ${\displaystyle n\cdot 2^{n}\pm 1}$
• Prime Sierpinski Project : triesto solve the Prime Sierpinski problem .
• Proth Prime Search : searches for Proth prime numbers .
• Seventeen or Bust : triesto solvethe Sierpiński problem .
• Sophie Germain Prime Search : searches for Sophie Germain prime numbers .
• The trickle problem : tries to solve the trickle problem .

Former projects

• AP26 Search : searched for an arithmetic sequence with 26 prime numbers. On April 12, 2010, the first arithmetic sequence was found with 26 prime numbers at a constant distance. It reads for , where 23 # = 223092870 is the prime faculty of 23. ${\displaystyle 43142746595714191+23681770\cdot 23\#\cdot n}$ ${\displaystyle n=0..25}$
• Prime Generator : created a prime number database
• Twin Prime Search : searched for prime twins with more than 10,000 decimal places of the form . ${\displaystyle k\cdot 2^{n}\pm 1}$

Project staging area

In the Project Staging Area, sub-projects are coordinated that are not yet accessible via BOINC.

• 27121 Sieving
• Factorial Sieving
• Generalized Fermat Number Prime Sieving
• Primorial Sieving
• Proth Prime Search Extended Sieving
• PRPNet

Individual evidence

1. ↑ First ever AP26 Found!

Web links

• Official homepage of the project
• Project statistics on boincstats.com