### What 3 prime numbers add up to 30?

2 is the only even prime number, all other prime numbers are odd Adding 3 odd number gives an odd number So 2 is one of the 3 prime number, then the problem is equal to: what 2 odd prime numbers add up to 28? Odd Prime numbers less than 28 are: 3, 5, 7, 11, 13, 17, 19, 23 The only solutions (for 28)are: 5+23, 11+17 So the solutions (for 30) are: 2+5+23, 2+11+17