Finding anagrams for a given word

Question

Two words are anagrams if one of them has exactly same characters as that of the another word.

Example : Anagram & Nagaram are anagrams

Answer 1

One solution is - Map prime numbers to alphabet characters and multiply prime number

For ex - 

    a -> 2
    b -> 3
    ......
    .......
    ......
    z -> 101

So

'ab' -> 6
'ba' -> 6
'bab' -> 18
'abba' -> 36
'baba' -> 36

Get MUL_number for Given word. return all the words from dictionary which have same MUL_number as given word