Difference between revisions of "Twin Prime Conjecture"

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The '''twin prime conjecture''' is a yet unproven conjecture that states that there are [[infinite]]ly many pairs of [[twin prime]]s. Twin primes are primes of the form <math>p</math> and <math>p+2</math>.
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The '''Twin Prime Conjecture''' is a [[conjecture]] (i.e., not a [[theorem]]) that states that there are [[infinite]]ly many pairs of [[twin prime]]s, i.e. pairs of primes that differ by <math>2</math>.
  
== Possible Proofs ==
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== Failed Proofs ==
 
=== Using an infinite series ===
 
=== Using an infinite series ===
One proof that there are infinitely many twin primes involves showing that the sum of the [[reciprocal]]s of twin primes [[diverge]]s. A strategy to prove that there are infinitely many twin primes is to consider the sum of reciprocals of all the twin primes: <center><math>B=\frac{1}{3}+\frac{1}{5}+\frac{1}{5}+\frac{1}{7}+\frac{1}{11}+\frac{1}{13}+\frac{1}{17}+\frac{1}{19}+\cdots</math></center>  
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One possible strategy to prove the infinitude of twin primes is an idea adopted from the proof of [[Dirichlet's Theorem]]. If one can show that the sum  
Unfortunately, it has been shown that this sum converges to a constant ''B'', known as [[Brun's constant]].
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<center><math>B=\frac{1}{3}+\frac{1}{5}+\frac{1}{5}+\frac{1}{7}+\frac{1}{11}+\frac{1}{13}+\frac{1}{17}+\frac{1}{19}+\cdots</math></center>
 
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of the [[reciprocal]]s of twin primes [[diverge]]s, this would imply that there are infinitely many twin primes.  Unfortunately, it has been shown that this sum converges to a constant <math>B</math>, known as [[Brun's constant]]. This could mean either that there are [[finite]]ly many twin prime pairs or that they are spaced "too far apart" for that [[series]] to diverge.
This could mean either that there are [[finite]]ly many twin prime pairs or that they are spaced "too far apart" for that [[series]] to diverge.
 
  
 
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[[Category:Conjecture]]
 
[[Category:Conjecture]]
 
[[Category:Number theory]]
 
[[Category:Number theory]]

Revision as of 13:09, 22 April 2008

The Twin Prime Conjecture is a conjecture (i.e., not a theorem) that states that there are infinitely many pairs of twin primes, i.e. pairs of primes that differ by $2$.

Failed Proofs

Using an infinite series

One possible strategy to prove the infinitude of twin primes is an idea adopted from the proof of Dirichlet's Theorem. If one can show that the sum

$B=\frac{1}{3}+\frac{1}{5}+\frac{1}{5}+\frac{1}{7}+\frac{1}{11}+\frac{1}{13}+\frac{1}{17}+\frac{1}{19}+\cdots$

of the reciprocals of twin primes diverges, this would imply that there are infinitely many twin primes. Unfortunately, it has been shown that this sum converges to a constant $B$, known as Brun's constant. This could mean either that there are finitely many twin prime pairs or that they are spaced "too far apart" for that series to diverge.

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