For the three numbers A, B, and C, the least common multiple of A and B is 12, and the least common multiple of B and C is 15. What is the least common multiple of the three numbers A, B, and C?
甲、乙、丙三个数，甲和乙的最小公倍数是12，乙和丙的最小公倍数的15．甲、乙、丙三个数的最小公倍数是多少？
<gadget id="calculator">2 * 2 * 3 * 5</gadget>
<output>60</output>

<result>60</result>