4. A certain three-digit number is a multiple of 2, adding 1 makes it a multiple of 3, adding 2 makes it a multiple of 4, adding 3 makes it a multiple of 5, and adding 4 makes it a multiple of 6. The smallest such number is $\qquad$ .
【Answer】122
【Explanation】
This three-digit number minus 2 results in a common multiple of $3, 4, 5, 6$. Taking the three-digit number 120, the minimum value is 122.