There is a carton of milk, no matter if it is distributed to 5 children or 6 children, it can be divided exactly. How many bottles of milk are there at least in this carton?
有一箱牛奶，无论分给5个小朋友还是分给6个小朋友，都能正好分完，这箱牛奶至少有多少瓶？
<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<result>30</result>