function prime_factors_test ( )

%*****************************************************************************80
%
%% prime_factors_test() tests prime_factors().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    20 September 2024
%
%  Author:
%
%    John Burkardt
%
  addpath ( '../prime_factors' );

  timestamp ( );

  fprintf ( 1, '\n' )
  fprintf ( 1, 'prime_factors_test():\n' );
  fprintf ( 1, '  MATLAB/Octave version %s\n', version ( ) );
  fprintf ( 1, '  Test prime_factors().\n' );
  fprintf ( 1, '\n' );

  for n = [ 61, 75, 3628800, 123456789 ]
    factors = prime_factors ( n );
    fprintf ( 1, '  Prime factors of %d\n', n );
    disp ( factors );
  end
%
%  Terminate.
%
  fprintf ( 1, '\n' )
  fprintf ( 1, 'prime_factors_test():\n' )
  fprintf ( 1, '  Normal end of execution.\n' )
  timestamp ( );

  rmpath ( '../prime_factors' );

  return
end
function timestamp ( )

%*****************************************************************************80
%
%% timestamp() prints the YMDHMS date as a timestamp.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    14 November 2022
%
%  Author:
%
%    John Burkardt
%
  t = now ( );
  c = datevec ( t );
  s = datestr ( c, 0 );
  fprintf ( 1, '%s\n', s );

  return
end

