<story><title>GIMPS Project Discovers Largest Known Prime Number</title><url>https://www.mersenne.org/primes/press/M77232917.html</url></story><parent_chain></parent_chain><comment><author>imhelpingu</author><text>So &lt;i&gt;that&amp;#x27;s&lt;/i&gt; what it&amp;#x27;s working on when it&amp;#x27;s starting up.</text></comment>
<story><title>GIMPS Project Discovers Largest Known Prime Number</title><url>https://www.mersenne.org/primes/press/M77232917.html</url></story><parent_chain></parent_chain><comment><author>netcraft</author><text>so I didn&amp;#x27;t know this, but got curious about how many known prime there are - I knew there were infinite primes, but thought that there would be some concrete list of all the primes that we had discovered somewhere - but apparently not&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;math.stackexchange.com&amp;#x2F;questions&amp;#x2F;272791&amp;#x2F;how-many-prime-numbers-are-known&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;math.stackexchange.com&amp;#x2F;questions&amp;#x2F;272791&amp;#x2F;how-many-pri...&lt;/a&gt;&lt;p&gt;&amp;gt; Nobody&amp;#x27;s really keeping count. ... There are very many hundred-digit primes to find. We could cover the Earth in harddisks full of distinct hundred-digit primes to a height of hundreds of meters, without even making a dent in the supply of hundred-digit primes.</text></comment>