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Simple question, not sure how to neatly find the answer.

2007-03-16 20:32:17 · 1 answers · asked by datapolitical 1 in Science & Mathematics Mathematics

1 answers

This isn't a solution, but it's easy to see that if such a palindrome exists, it must have an odd number of digits since any palindrome with an even number of digits is divisible by 11. Ie.
10^k+10^(k+2m+1) =
10^k(10^(2m+1)-1) =
10^k(10+1) (10^2m - 10^(2m-1) + 10^(2m-2) - 10^(2m-3) + ... - 1)

2007-03-16 21:08:56 · answer #1 · answered by Quadrillerator 5 · 0 0

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