This code contains an implementation of the APR-CL primality proving algorithm. It is a conversion of the Java based APRT-CLE written by Dario Alpern, who had written his based on the UBASIC version from Yuji Kida. This version incorporates improvements based on Jason Moxham's APR-CL code, which greatly reduced run-time memory requirements.

mpz_aprcl is meant to be compiled on systems that support C, GMP, and a 64-bit data type. It can prove the primality of numbers up to 6021 digits long.

mpz_aprcl32 is meant to be compiled on systems that support C, GMP, a 32-bit data type, but no 64-bit data type. This project can prove the primality of numbers up to 3827 digits long.

Version 1.1 was posted on 2013/12/27. This new version is around 1.5-2.2x faster and has some bug fixes. Please see the readme.txt file for some more details and a table showing some sample timings to prove various sized numbers prime.

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GNU Library or Lesser General Public License version 3.0 (LGPLv3)

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Registered

2013-07-04