If k is a non-negative integer and 18^k is a divisor of 624,938 then 6^k - k^6 =	Pick.
A) 0  B) 1  C) 36  D) 118  E) 420
6+2+4+9+3+8= 
<gadget id="calculator">6+2+4+9+3+8</gadget>
<output>32</output>
32, so this number is not divisible by 3 and thus not divisible by 18.   Therefore, k=0   6^k - k^6 =1-0= 
<gadget id="calculator">1-0</gadget>
<output>1</output>
1   The answer is 1.
<result>B</result>
If k is a non-negative integer and 18^k is a divisor of 624,938 then 6^k - k^6 =