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Mersenne PrimeNet Server 4.0 (Build 4.0.101)
Individual Account Report 10 Dec 2007 17:18 (Dec 10 2007  9:18AM Pacific)
 
All dates and times are Coordinated Universal Time (UTC)
 
EFF.org Research Discovery Prize is US $100,000 for first 10 million-digit prime
 
Account ID      LL P90*  Exponents  Fact.P90  Exponents  P90 CPU
                CPU yrs  LL Tested  CPU yrs*  w/ Factor  hrs/day
--------------  -------  ---------  --------  ---------  -------
adamsutton      308.728       38       6.370        8    19857.9

 

Riesel Prime Search

The "Riesel Prime Search" project is searching for Riesel primes k*2^n-1, k>1.
We have three subprojects as follows.
(1) k's that can produce many primes in the given range of exponent n,
(2) low-weight k's that produce a very small number of primes [opposite to (1) above],
(3) small k < 300 (with exception of those k's already reserved by other projects).

How To Join
Everybody is welcome to join the project. Just visit the forum, have a look what's going on, and reserve your first file to test!

Software Used
Primality Testing: Almost exclusivelly LLR, with some people testing PRP. For small exponents (less than 10k or 20k) pfgw and Proth.exe are used too.
Sieving: NewPGen by individuals, ksieve in team sieving. At least one person is using ProthSieve.

Visit RPS on Chris Caldwell's Prime PagesVisit my page on Chris Caldwell's Prime Pages.

 

3333333*2^n-1 3015015*2^n-1 33*2^n-1 1597*2^n-1