9*80=720, if the factor 80 remains unchanged, the factor 9 is multiplied by 5, what should be the product.
9*80=720，如果因数80不变，因数9乘5，积应该是多少．
<gadget id="calculator">9 * 80 * 5</gadget>
<output>3_600</output>

<result>3_600</result>