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ISI2016-MMA-25

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A integer is said to be a $\textbf{palindrome}$ if it reads the same forward or backward. For example, the integer $14541$ is a $5$-digit palindrome and $12345$ is not a palindrome. How many $8$-digit palindromes are prime?

  1. $0$
  2. $1$
  3. $11$
  4. $19$

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