The product of two whole numbers is $$30$$. If the numbers are $$5$$ and $$6$$, their sum is $$5+6=11$$. 
The product of two whole numbers is $$30$$. What is the least possible value of their sum? 
Options:
  * $$10$$ 
  * $$11$$ 
  * $$13$$ 
  * $$31$$ 