The sum of 3 numbers is 18 if every number is a prime number what areally the 3 numbers

Well, there aren't that many prime numbers below 18, so we can list them:

2

3

4

7

11

13

17

I wonder if there is only one solution ... i didn't check for this. but at least one solution is the following one:

13+2+3=18

alternative, if we can repeat the numbers:

4+7+7

A prime number is a natural number greater than 1 that has no positive divisors other than 1 itself. 3,11, and 5 are all prime numbers. if you add 3+5+11 you'll get the sum of 18. So 3,5, and 11 are the answers