The least common multiple of $$6$$ and $$18$$ is $$18$$. The greatest common factor of $$6$$ and $$18$$ is $$6$$. Finally, $$6\times18 = 108$$. 
What is the product of the least common multiple of $$6$$ and $$18$$ and the greatest common factor of $$6$$ and $$18$$? 
[A] $$6$$ 
[B] $$18$$ 
[C] $$54$$ 
[D] $$108$$ 