Friday 29 November 2013

least positive integer greater than 2013 that cannot be written as the sum of two palindromes

A palindrome is a positive integer, not ending in 0, that reads the same forwards and backwards.
For example, 35253; 171; 44; and 2 are all palindromes, but 17 and 1210 are not.
Compute the least positive integer greater than 2013 that cannot be written as
the sum of two palindromes.

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