When Xiaojun was doing the multiplication problem, he regarded one of the factors, 25, as 15. The resulting product was 1240 less than the correct product. What should be the correct product?
小军在做乘法计算题时，把其中一个因数25看成了15，结果得到的积比正确的积少了1240，正确的积应该是多少．
<gadget id="calculator">1_240 / 10</gadget>
<output>124</output>

<gadget id="calculator">25 * 124</gadget>
<output>3_100</output>

<result>3_100</result>