The new library is open, Xiao Hong goes to the library every 3 days, Xiao Ling goes every 4 days, Xiao Gang goes every 2 days, may I ask Xiao Gang, Xiao Hong and Xiao Ling to go to the library on a certain day After meeting, how many days are they likely to meet again in the library?
新图书馆开馆了，小红每隔3天去图书馆一次，小灵每隔4天去一次，小刚每隔2天去一次，请问小刚、小红和小灵某天在图书馆相遇后，经过多少天她们有可能会在图书馆再次相遇？
<gadget id="calculator">2 * 2 * 3</gadget>
<output>12</output>

<result>12</result>