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                                                                    13171923
2931374143 4753596167 7173798389 9789837973 7167615953 4743413731 2923191713
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Formed by ascending and descending concatenation of all the non-palidromic two-digit primes. [Silva]

 

  Submitted: 2010-05-16 14:25:18;   Last Modified: 2010-05-17 20:14:32.



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