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The square of 193 (37249) concatenated with its reverse (which is a prime) results in a palindrome that is the product of 2 palindromes, one non-prime (1001) and one prime (3721273). [Trotter]

 

  Submitted: 2003-10-19 16:24:58;   Last Modified: 2008-01-30 11:28:00.



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