If k^3 is divisible by 540, what is the least possible value of integer k?  Choose the correct choice from the following options:  A) 12  B) 30  C) 60  D) 90  E) 120
540 = 2^2*3^3*5   Therefore k must include at least  2 * 3 * 5= 
<gadget id="calculator"> 2 * 3 * 5</gadget>
<output>30</output>
30.   The answer is 30.
<result>B</result>
If k^3 is divisible by 540, what is the least possible value of integer k?