Use 0, 5, 7 to form a three-digit number so that it is not only a multiple of 2, but also a multiple of 3 and 5. What is the largest of them?
用0、5、7三个数字组成一个三位数，使它既是2的倍数，又是3和5的倍数，其中最大的是多少．
<result>750</result>