Fast C/C++ prime number generator

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Download primesieve

The latest primesieve version is 5.7.3 released on the 19th November 2016, see the ChangeLog for what's new. For each supported operating system there are two primesieve binaries available, a GUI version and a console version. Have a look at the screenshots page for pictures. Please report any bugs to the author.

Old primesieve releases can be downloaded from

Source code

64-bit binaries

32-bit binaries

SHA1 checksums