Su Su bought the dolls with 623 yuan. The unit price of all the dolls is the same, which is an integer. The number of dolls purchased is higher than the unit price of the dolls, and the last remaining 23 yuan cannot buy another one. Ask Su Su how many dolls he bought.
宿宿用623元购买公仔，所有公仔的单价一致，都是整数元，购买到的公仔的数目比公仔的单价高，且最后剩下23元无法再购买一个．问宿宿买了多少个公仔．
<gadget id="calculator">623 - 23</gadget>
<output>600</output>

<gadget id="calculator">600 / 24</gadget>
<output>25</output>

<result>25</result>