Among the numbers composed of 0, 2, 4, and 6 (each number is used at most once), how many numbers are multiples of 2, 3, and 5 at the same time (regardless of 0).
用0、2、4、6组成的数中(每个数字最多用一次)，同时是2、3和5的倍数(不考虑0)的数有多少个．
<result>6</result>