A pack of candies can be divided exactly no matter if there are 5 average scores, 7 average scores, or 9 average scores. What is the minimum number of candies in this pack?
一包糖果无论5人平均分，7人平均分，还是9人平均分都能正好分完，没有剩余，这包糖果最少多少个？
<gadget id="calculator">5 * 7 * 9</gadget>
<output>315</output>

<result>315</result>