AltiVec MP (PPC with AltiVec only) http://developer.apple.com/samplecod...ion/index.html factor.exe ftp://ftp.computing.dcu.ie/pub/crypto/factor.exe LiDIA (for any CPU that supports GMP) www.informatik.tu-darmstadt.de/TI/LiDIA/ QSIEVE http://www.thorstenreinecke.de/qsieve/ NFSX for UBasic ftp://rkmath.rikkyo.ac.jp/pub/ubtest/ Since that link isn't working i put a version at http://www.angelfire.com/falcon2/homeprimes/NFSX.zip SNFS 1.01 http://homepage2.nifty.com/m_kamada/math/snfs_101.lzh pgnfs http://pgnfs.org/index.php?page=Home