Help please (I dont get it)

Question

https://edabit.com/challenge/2QvnWexKoLfcJkSsc

public class Program13
{
public static int[] ArrayOfMultiples(int num, int length)
{
int[] hello;
for (int i = 1; i <= length; i++)
{
hello = Convert.ToInt32(Math.Pow(num, i));

}
return hello;
}
}

visual studios says:
int cant be converted to int[]

Answer 1

I'm not sure but see if this works.

public class Program {
public static int[] ArrayOfMultiples(int num, int length) {

int[] hello = new int[length];
int x = 1;
for (int i = 0; i < length; i++)
{
hello[i] = Convert.ToInt32(Math.Pow(num, x));
x++;
}
return hello;
}
}