give a number you can cube to give an answer bigger than 600 but smaller than 800.

Please give the correct answer and it needs to be easy to understand.

thx :D

Verified Answer :

AL2006


Any number between  8.434  and  9.283  will do the job.

The only whole number that can do it is  9 .

8 cubed = 512  too small
9 cubed = 729  just right
10 cubed = 1,000  too big