Choose four numbers from the 10 numbers 0 to 9 to form four digits that are multiples of 2, 3 and 5 at the same time. What is the largest number and what is the smallest number? nothing

Choose four numbers from the 10 numbers 0 to 9 to form four digits that are multiples of 2, 3 and 5 at the same time. What is the largest number and what is the smallest number? nothing

The least common multiple of 2,3,5 is 30, which means that the last digit of the number must be 0;
Maximum number: the largest number from 1 to 9 is 9, so the thousand digit is 9, the largest number from 1 to 8 is 8, so the hundred digit is 8, and the ten digit is the largest number among the remaining numbers, so that the number composed is a multiple of 3. Select 7 (9 + 8 + 7 = 24 is a multiple of 3, so 987 is a multiple of 3), so the maximum number is 9870;
Minimum: similarly, the minimum is 1230