Prime Words

Computer Science Level 4

Assume the value of a letter is its position in the alphabet: A = 1, B = 2, ... Z = 26.

Let S be the sum of the letters in word W. If S is a prime number, then W is a prime word.

For example: "PRIME" is a prime word since it has a value of 61.

How many words in this text file are prime words? Click here to open the file.