When Xiaodong was doing multiplication calculations, he regarded one of the factors of 42 as 24, and the resulting product was 360 less than the correct product. What should be the correct product.
小东做乘法计算时，把其中一个因数42看成了24，结果得到的积比正确的积少了360．正确的积应该是多少．
<gadget id="calculator">360 / 18</gadget>
<output>20</output>

<gadget id="calculator">42 * 20</gadget>
<output>840</output>

<result>840</result>