Here's an update for PrimeGrid. Currently the following projects are offered (recently new projects are in

blue):

**LLR Projects (primality testing)**- 321 Prime Search (BOINC)
- 12121 Prime Search (PRPNet)
- Cullen Prime Search (BOINC)
- Generalized Cullen/Woodall Prime Search Base 13 (PRPNet)
- Prime Sierpinski Project (BOINC, LLRNet*, Manual*)
- Primorial Prime Search (PRPNet) - coming soon!
- Proth Prime Search (BOINC)
- Proth Prime Search Extended (PRPNet)
- Sophie Germain Prime Search (PRPNet)
- Twin Prime Search (BOINC)
- Woodall Prime Search (BOINC)

**Sieve Projects (finding factors)**- 321 Sieve (BOINC)
- 12121 Sieve (Manual)
- Cullen/Woodall Sieve (BOINC)
- Generalized Cullen/Woodall Sieve (Manual)
- Prime Sierpinski Project Sieve (BOINC, Manual*)
- Primorial Sieve (Manual)
- Proth Sieve (BOINC)
- Proth Sieve Extended (Manual)
- Twin Prime Sieve (Manual**)

* offered through the

**Prime Sierpinski Project** in the Mersenne Forum

** offered through the

**Twin Prime Search** in the Mersenne Forum

As you can see, there's a wide variety of work to do from BOINC to PRRNet to Manual. There are applications for 32 bit and 64 bit Linux and Windows and MacIntel/PPC (PRPNet only). WU's range from less than a minute to more than 48 hours.

Please visit

**PrimeGrid **to see if there's any project that suits your interests. For those specifically interested in PRPNet, please visit this

**thread**. Multicore installations makes management easy. :)

Overwhelmed??? See the following:

Only interested in Top 5000 primes, check out the

Proth Prime Search Extended in PRPNet. Recent stats on port 9000 show the following rates (Q6600 running 24/7):

- 1-2 Top 5000 primes per core every 10 days
- 1-2 Top 5000 primes per dual core every 5 days
- 1-2 Top 5000 primes per quad core every 2-3 days
- 1-2 Top 5000 primes per dual quad core every 1-2 days
- 1-2 Top 5000 primes per 10 cores every 1 day

Best of Luck finding primes!!!