25% of a certain number happens to be the smallest composite number, what is this number?
某数的25%正好是最小的合数，这个数是多少．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4 / (1/4)</gadget>
<output>16</output>

<result>16</result>