NAME

       openssl-prime, prime - compute prime numbers

SYNOPSIS

       openssl prime [-help] [-hex] [-generate] [-bits] [-safe] [-checks] [number...]

DESCRIPTION

       The prime command checks if the specified numbers are prime.

       If no numbers are given on the command line, the -generate flag should be used to generate primes
       according to the requirements specified by the rest of the flags.

OPTIONS

       [-help]
           Display an option summary.

       [-hex]
           Generate hex output.

       [-generate]
           Generate a prime number.

       [-bits num]
           Generate a prime with num bits.

       [-safe]
           When  used  with  -generate,  generates a "safe" prime. If the number generated is n, then check that
           (n-1)/2 is also prime.

       [-checks num]
           Perform the checks num times to see that the generated number is prime.  The default is 20.

COPYRIGHT

       Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (the "License").  You may not use this file except in compliance  with
       the   License.   You  can  obtain  a  copy  in  the  file  LICENSE  in  the  source  distribution  or  at
       <https://www.openssl.org/source/license.html>.

1.1.1                                              2023-05-24                                        PRIME(1SSL)