Question

divisibility test of 9 by 123644​

Answer 1

Answer:

1+2+3+6+4+4=20

divisibility by 9 means the sum of the digits of a number must be divisible by 9.

here 20 is not divisible by 9 so 123644 is not divisible by 9

Answer 2

first we have to add the number 1 + 3 + 6 + 4 + 4 + 4 = 20 so that 20 is not divided from 9 so it is not a perfect divisible of 9