Singular Manual: prime

  | ### 5.1.112 prime `Syntax:` `prime (` int_expression `)` `Type:` int `Purpose:` returns the largest prime less than or equal to the argument; returns 2 for all arguments smaller than 3. `Example:`
        prime(320000);
      ==> 319993
        prime(32004);
      ==> 32003
        prime(0);
      ==> 2
        prime(-1);
      ==> 2
See general_lib; int.

User manual for Singular version 4-1-0, 2016, generated by texi2html.