GJSieve

If you are looking for the 64-bit version, find it here: http://sourceforge.net/projects/gjsieve/files/200/gjsieve203.exe/download

GJSieve is a basic, yet full-featured sieve and tester for numbers of several classifications, including Proth, Cullen, and Woodall.

GJSieve is built on the GNU Multiple-Precision (GMP) integer + rational library, and is available for both Windows and OSX.

Currently, the application differs greatly across platforms. This may change in the future. They both, however, do the same thing.

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