Students in a certain grade are divided into 2 classes, 3 classes, 4 classes, ..., 9 classes, 10 classes, and there will be one more person, so how many people should you have?
某年级学生平均分成2个班，3个班，4个班，…，9个班，10个班，都会多一个人，那么该你那几至少有多少人．
<gadget id="calculator">2 * 3 * 7 * 2 * 2 * 3 * 5</gadget>
<output>2_520</output>

<gadget id="calculator">2_520 + 1</gadget>
<output>2_521</output>

<result>2_521</result>