## 5-digit palindromes

*Difficulty level:*

A palindrome number is one that is equal when read from front to back and back to front. For example, 171 is a palindrome number. There are 90 three-digit palindromes. How many 5-digit palindromes are there?

*Difficulty level:*

A palindrome number is one that is equal when read from front to back and back to front. For example, 171 is a palindrome number. There are 90 three-digit palindromes. How many 5-digit palindromes are there?