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Siamese primes ( Trivia # 18 )

on Saturday, May 9, 2009

Named by Beauregard and Suryanarayan, they are prime pairs of the form n^2 − 2 and n^2 + 2. The sequence of pairs starts :

7-11
79-83
223-227
439-443
1087-1091
13687-13691
.. . . .

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