[R] Prime Numbers Pkgs - Schoolmath is broken

[Red Roo]

Looking for a recommended package that handles prime number computations.

Tried the following unsuccessfully:
primeFactors() in the R.basic package failed to install.

primes() and primlist are broken in Schoolmath pkg on CRAN.
My analysis can be found here http://j.mp/9BNI9q
Not sure what the procedure is for getting things fixed, so I've cross-posted to r-dev as well.
--njg
________________________________________________________________________
TAKING THE PITH OUT OF PERFORMANCE http://perfdynamics.blogspot.com/
Follow me on Twitter http://twitter.com/DrQz
PERFORMANCE DYNAMICS COMPANY http://www.perfdynamics.com/