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      <pubDate>2016-12-27 20:56:11 UTC</pubDate>
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         <title>Python-Mersenne Prime Number</title>
         <author>alifurkan_biten</author>
         <link>https://padlet.com/alifurkan_biten/6gr9wyqs4vuo/wish/144829003</link>
         <description><![CDATA[<div><br>In <a href="https://en.wikipedia.org/wiki/Mathematics">mathematics</a>, a <strong>Mersenne prime</strong> is a <a href="https://en.wikipedia.org/wiki/Prime_number">prime number</a> that is one less than a <a href="https://en.wikipedia.org/wiki/Power_of_two">power of two</a>. That is, it is a prime number that can be written in the form <em>Mn</em> = 2^<em>n</em> − 1 for some <a href="https://en.wikipedia.org/wiki/Integer">integer</a> <em>n</em>. They are named after <a href="https://en.wikipedia.org/wiki/Marin_Mersenne">Marin Mersenne</a>, a French <a href="https://en.wikipedia.org/wiki/Minim_(religious_order)">Minim friar</a>, who studied them in the early 17th century. The first four Mersenne primes (sequence <a href="https://oeis.org/A000668">A000668</a> in the <a href="https://en.wikipedia.org/wiki/On-Line_Encyclopedia_of_Integer_Sequences">OEIS</a>) are <a href="https://en.wikipedia.org/wiki/3_(number)">3</a>, <a href="https://en.wikipedia.org/wiki/7_(number)">7</a>, <a href="https://en.wikipedia.org/wiki/31_(number)">31</a>, and <a href="https://en.wikipedia.org/wiki/127_(number)">127</a>.<br><br></div><div><br>If <em>n</em> is a <a href="https://en.wikipedia.org/wiki/Composite_number">composite number</a> then so is 2^<em>n</em> − 1. (2<em>ab</em> − 1 is divisible by both 2^<em>a</em> − 1 and 2^<em>b</em> − 1.) The definition is therefore unchanged when written <em>Mp</em> = 2^<em>p</em> − 1 where <em>p</em> is assumed prime.<br><br></div>]]></description>
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         <pubDate>2016-12-27 20:56:55 UTC</pubDate>
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         <author>alifurkan_biten</author>
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         <pubDate>2016-12-27 21:05:38 UTC</pubDate>
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         <title>Ganglia</title>
         <author>alifurkan_biten</author>
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         <pubDate>2016-12-27 21:06:01 UTC</pubDate>
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