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The numbers in the 5th row of Pascal's Triangle concatenated together, but padded with 0's, is prime. It is also 'quasipalindromic' in the sense of a concatenating several multidigit numbers in reverse order, but not reversing the digits of those individual numbers. [Green]

 

  Submitted: 2009-12-06 19:27:46;   Last Modified: 2010-04-26 14:37:07.



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