(2*3*5*7*11*13*17*19)/(38*51*65*77)=how much.
(2*3*5*7*11*13*17*19)/(38*51*65*77)=多少．
<gadget id="calculator">2 * 3 * 5 * 7 * 11 * 13 * 17 * 19</gadget>
<output>9_699_690</output>

<gadget id="calculator">38 * 51 * 65 * 77</gadget>
<output>9_699_690</output>

<gadget id="calculator">9_699_690 / 9_699_690</gadget>
<output>1</output>

<result>1</result>