Just a side note... this is quite slow.

With the following code (you can see that it is raw and not tweaked for performance), it took 1 second to find the 2000th (17389):

use Data::Dumper;

use strict;
use warnings;
print time(), "\n";
my @primes;
my $candidate = 2;

while ($#primes < $ARGV[0] - 1) {
    my $found = 0;
    while (!$found) {
        for my $prime (@primes) {
            if  (!($candidate % $prime)) {
                $found = 1;
                last;
            }
        }
        if (!$found) {
            push @primes, $candidate;
        }
        $candidate ++;
    }
}

print $primes[-1], "\n";
print time(), "\n";

[download]

With the Stream one, it took 140 seconds.

In reply to Re: Streams and "deep recursion" warning by pg
in thread Streams and "deep recursion" warning by tlm

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