If k^3 is divisible by 180, what is the least possible value of integer k?  Pick one.
A) 12 B) 30 C) 60 D) 90 E) 120
180 = 2^2*3^2*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 180, what is the least possible value of integer k?