How many times (1/8) can be subtracted consecutively from the smallest composite number to get the smallest prime number.
最小的合数连续减多少个(1/8)得到最小的质数．
<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">2 / (1/8)</gadget>
<output>16</output>

<result>16</result>