Question

What is the divisibility test of 11? ​

Answer 1

Divisibility test for 11

If the last digit of a number is subtracted from the number formed by remaining digits then if the new number is divisible by 11 then the whole number is divisible by 11.

For example :-

Let a number = 143

Then,

1. Subtract last digit from number formed by the remaining digit.
2. Last digit = 3 , No formed = 14
3. Subtract it from number = 14-3 = 11
4. Now, 11 is divisible by 11 .So, the whole number 143 is divisible by 11.