8 is a factor of 40 but not a factor of 38.
How to get the factors
To determine if 8 is a factor of the numbers 40 and 38, we need to check if either 40 or 38 is divisible by 8 without leaving a remainder.
8 is a factor of a number if the number can be divided by 8 without any remainder.
40 ÷ 8 = 5, which means 8 is a factor of 40 because it divides evenly.
38 ÷ 8 = 4.75, which leaves a remainder, indicating that 8 is not a factor of 38.
Therefore, 8 is a factor of 40 but not a factor of 38.