How many 7 letter palindrome can be made out of English alphabet?

Here's how to figure out the number of 7-letter palindromes using the English alphabet:

Understanding Palindromes

A palindrome reads the same forwards and backwards. For a 7-letter palindrome, the first three letters determine the entire word.

The Calculation

* First Letter: You have 26 choices (A-Z).

* Second Letter: You have 26 choices (A-Z).

* Third Letter: You have 26 choices (A-Z).

Since the first three letters determine the entire palindrome, the total number of possible 7-letter palindromes is:

26 * 26 * 26 = 17,576