Sunday Times Teaser 2639 – Prime Number

by Peter G. Chamberlain

I have given each letter of the alphabet have a different whole number value between 1 and 99 inclusive so that , for example, three letter words might represent three, four, five or six digit numbers.  With a specific set of values it turns out that when letters are replaced by their numeric equivalents:

PRIME = NUMBER

and each individual letter used has been given an an odd prime number.

What is the number PRIME?