The product of two inner terms is the smallest prime number, one outer term is (1/25), and the other outer term is what.
两个内项的积是最小的质数，一个外项是(1/25)，另一个外项是多少．
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">2 / (1/25)</gadget>
<output>50</output>

<result>50</result>