The product of three natural numbers is 120, and the sum of two decimals is equal to the third number. Then the sum of these three natural numbers is () urgent!

The product of three natural numbers is 120, and the sum of two decimals is equal to the third number. Then the sum of these three natural numbers is () urgent!

sixteen
Factoring 120 = 2 × 2 × 2 × 3 × 5
Then you guess 3 + 5 = 2 × 2 × 2 = 8
So 3 + 5 + 8 = 16