Answer:
Any of the numbers 5,6,7,8,9 could be the divisor of the problem.
Step-by-step explanation:
Division
If I divide a number and get a remainder of 4, then the divisor must be greater than 4. A divisor of 4, for example, would lead to a remainder of (maximum) 3.
Thus, our divisor can only be one among the numbers: 5,6,7,8,9. If the dividend is exactly 4, then the divisions
4/5, 4/6, 4/7, 4/8, and 4/9
they all produce the same remainder of 4.
Thus, any of the numbers 5,6,7,8,9 could be the divisor of the problem
