The sum of three different numbers is 18. lf every number is a prime number, what are the three numbers?
1 Answer
May 7, 2018
Explanation:
The sum of three odd numbers is always odd. Thus,
In other words, one of the numbers must be
Now, we just need to find two primes that sum up to
The only prime numbers we can use are:
By trial and error,
Therefore, there are two possible answers: