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Primo is a primality proving program based on the ECPP (Elliptic Curve Primality Proving) algorithm. Given positive odd integers, it tests whether these integers are prime, and if they are it produces primality certificates. With Primo, one can check crypto-primes and prove whether they are actually prime... or not.

Executable for Linux 64-bit (Ubuntu 12.04/x86-64 architecture)
Compiled with Free Pascal 2.6.0 and Lazarus 1.0.6

A short description of the ECPP algorithm can be found at Elliptic Curve Primality Proving by Eric Weisstein (from MathWorld — A Wolfram Web Resource).

• What does "LX64" stand for?
  Linux 64-bit.
   
• Does it exist a Primo version for an other operating system than Linux?
  No, there is not.
   
• Is the LX64 version for multicore processors?
  Yes, it is.
   
• Does the LX64 version run with Linux distributions other than Ubuntu 12.04?
  It should do (but I do not know).
   
• Does it exist a command line version?
  No, not yet.
   

• Modified the Sieve Parameters setting.
• Updated the help file (Sieve parameters topic).

The software Primo may be used free of charge but you should read the End-User License Agreement before downloading and using it.

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