It tells you that 729 is a perfect cube and a perfect square. It gives you a remainder of 1 when divided by 2 or 364 and lastly it has a factor of 3 and 243.
AB0รท10 =AB. A & B are integers as therefore AB is a nice whole number. Hence AB0 is divisible by 10. Hopefully the answers while two months later holds relevance to you. Cheers.