Goldbach Conjecture
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enMaths in a minute: Number mysteries
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<p>Number theory is famous for problems that everyone can understand and that are easy to express, but that are fiendishly difficult to prove. Here are some of our favourites.</p>
<h3>The Goldbach conjecture</h3>
<p>The Goldbach conjecture is named after the mathematician <a href="http://www-history.mcs.st-and.ac.uk/Biographies/Goldbach.html">Christian Goldbach</a> who formulated it in the middle of the eighteenth century. It states that any even natural number greater than 2 can be written as the sum of two prime numbers. </p><p><a href="http://plus.maths.org/content/maths-minute-number-mysteries" target="_blank">read more</a></p>http://plus.maths.org/content/maths-minute-number-mysteries#commentsGoldbach ConjectureMersenne primeMersenne searchnumber theoryperfect numberTue, 16 Jul 2013 08:49:15 +0000mf3445925 at http://plus.maths.org/contentMathematical mysteries: Goldbach revisited
http://plus.maths.org/content/mathematical-mysteries-goldbach-revisited
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<p>Since we first wrote about the Goldbach Conjecture we've had many requests for more information about it and about how our Goldbach calculator works. We answer some of your questions here but the Goldbach conjecture touches on a strange area of maths that may leave you even more curious than before...</p>
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<div class="pub_date">May 1998</div>
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<p>Since PASS Maths first wrote about the Goldbach conjecture (see "<a href="/issue2/xfile/index.html">Mathematical mysteries: the Goldbach conjecture</a>" in Issue No 2), we have had many requests for more information about it, and about how our Goldbach calculator works. We can answer some of your questions here but the Goldbach conjecture touches on a strange area of maths that may leave
you even more curious than before...</p><p><a href="http://plus.maths.org/content/mathematical-mysteries-goldbach-revisited" target="_blank">read more</a></p>http://plus.maths.org/content/mathematical-mysteries-goldbach-revisited#comments5Goldbach ConjectureMathematical mysteriesThu, 30 Apr 1998 23:00:00 +0000plusadmin4762 at http://plus.maths.org/contentMathematical mysteries: the Goldbach conjecture
http://plus.maths.org/content/mathematical-mysteries-goldbach-conjecture
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<p>Every even number greater than 4 can be written as the sum of two odd primes - a simple statement, but still unproven today.</p>
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<div class="pub_date">May 1997</div>
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<p>Prime numbers provide a rich source of speculative mathematical ideas. Some of the mystical atmosphere that surrounds them can be traced back to Pythagoras and his followers who formed secret brotherhoods in Greece, during the 5th Century BC. The Pythagoreans believed that numbers had spiritual properties. The discovery that some numbers such as the square root of 2 cannot be expressed exactly
as the ratio of two whole numbers was so shocking to Pythagoras and his followers that they hushed up the proof!</p><p><a href="http://plus.maths.org/content/mathematical-mysteries-goldbach-conjecture" target="_blank">read more</a></p>http://plus.maths.org/content/mathematical-mysteries-goldbach-conjecture#comments2Goldbach calculatorGoldbach ConjectureMathematical mysteriesprime numberWed, 30 Apr 1997 23:00:00 +0000plusadmin4756 at http://plus.maths.org/content