A number is divisible by $8$, by what other numbers will that number be divisible?

Given that a number is divisible by $8$.

We know that If a number is divisible by any number then it will also be divisible by each of the factors of that number.

Factors of $8=1,2,4,8$

Therefore if a number is divisible by $8$ then it will also be divisible by $1,2,4$ also.