Hint -- 41 is a prime number, too!(unless you want to shave off a few years and be 37)

the thing is, if you say "i am 39" people tend to think that you aren't-- it's much to much of cliche age.. but no one expect you to chose 37 or 41 or 47 as age to stay put at. there are lots of prime numbers.. and isn't better to be 47 (a prime number) rather than 49? (a square!-- who wants to be a square?)