In order to prepare for the game, the badminton players bring some shuttlecocks for training, whether it is the number of 2 by 2, the number of 3 by 3, or the number of 5 by 5, they are all counted exactly. How many badmintons do the team members bring at least?
为了备战比赛，羽毛球队员带一些羽毛球进行训练，不管是2个2个的数，3个3个的数，还是5个5个的数都正好数完．队员们至少带来多少个羽毛球？
<gadget id="calculator">2 * 3 * 5</gadget>
<output>30</output>

<result>30</result>