In N is a positive integer less than 200, and 14N/60 is an integer, then N has how many different positive prime factors?	Choose one
A) 2
B) 3
C) 5
D) 6
E) 8
14n/60 must be an integer. =&gt; 7n/30 must be an integer. Hence n must be a multiple of 2*3*5.   =&gt; n has 3 different prime integers and cannot have more than 3 different prime integers because  2*3*5*7= 
<gadget id="calculator"> 2*3*5*7</gadget>
<output>210</output>
210 &gt; 200 ANSWER:3
<result>B</result>
In N is a positive integer less than 200, and 14N/60 is an integer, then N has how many different positive prime factors?