Question

Divide.
(a) 721 = 11​

Answer 1

mere ko kuch samajh me nahi aa raha hai

Answer 2

If you divide 721 by 11 and the quotient is a whole number without a remainder, then 721 is divisible by 11. To find out if 721 is divisible by 11 you could therefore simply enter 721 divided by 11 into your calculator to see if you get a remainder - however, we will show you a better method to determine if 721 is divisible by 11 without a calculator.

To find out if any number such as 721 is divisible by 11, you split 721 into individual digits and then alternate subtracting and adding the digits. If the absolute value of the result is divisible by 11, then 721 is divisible by 11. Here is the math:

7 - 2 + 1 = 6

|6| = 6

6 is not divisible by 11, therefore the answer to "Is 721 divisible by 11?" is No.