Divisibility by 11

if the difference between the sum of the digits at odd places and the the sum of the digits at even places is either 0 or any number divisible by 11.

Example:

• 49245317 is divisible by 11 since (4+2+5+1)-(9+4+3+7)=-11 which is divisible by 11.
• 125943 is not divisible.

Posted in: Divisibility Test,Numerical Operations