Here you go if that helps.
The answer to this question would be: No, they can't
Greatest common factor biggest possible value is the number value itself. There is no factor that bigger than the number.
But the least common multiple smallest possible value is the number. There is no multiple that smaller than the number.
So it is not possible to have GCF bigger than LCM.
The awnser would be 23
x 23
____
529
Hi,
To find the volume of cylinder this formula is required.

To get radius you need to divide diameter with 2 like this.

Now just put your values into formula.

You will need 653451.27 cubic centimetres of concrete.
Hope this helps.
r3t40