The whole numbers less than $$1000$$ that can be written as such a product are $$0\times1\times2$$, $$1\times2\times3$$, $$2\times3\times4$$, $$3\times4\times5$$, $$4\times5\times6$$, $$5\times6\times7$$, $$6\times7\times8$$, $$7\times8\times9$$, $$8\times9\times10$$, and $$9\times10\times11$$. In all, that\textquotesingle s $$10$$. 
How many whole numbers less than $$1000$$ can be written as the product of $$3$$ consecutive whole numbers? 

  * $$10$$ 
  * $$11$$ 
  * $$15$$ 
  * $$21$$ 