There is a conference with attendees who come from different countries. The organizers want to arrange the seating such that the number of attendees is divisible by 9, 12, and 15. However, they also want the number of attendees to be the smallest possible number that satisfies this condition. What is the smallest number of attendees that the organizers can have? Let's think step by step and output the final answer within \boxed{}.
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