What is the possibility (or probability) that the number drawn from the six numbers 1, 2, 3, 4, 5, and 6 is a factor of 6?
用1、2、3、4、5、6这六个数字中抽到的数是6的因数的可能性(或概率)是多少．
<gadget id="calculator">4 / 6</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>