Divisibility of a number by 9 shortcut tricks

Divisibility of a number by 9 shortcut tricks
we are try to calculate divisibility of a number by 9 or any number using divisor 9, but if any large numbers is given we are not able to perform fast ,and using some rule and shortcut tricks we are calculate the divisibility of a numbers by 9.



Divisibility of a number by 9 shortcut tricks
All digits sum of a number if divisible by 9 then the number is divisible by 9.

Example: 9981: (9+9+8+1)=27 that is divisible by 9 so the number 9981/9 = 1109.

Example: 89874: (8+9+8+7+4)=36 that is divisible by 9 so the number 89874/9 = 9986.

Example: 9522: (9+5+2+2)=18 that is divisible by 9 so the number 9522/9 = 1058.

Example: 499869: (4+9+9+8+6+9) = 45 that is divisible by 9 so the number 499869/9 = 55541.

Example: 77896593: (7+7+8+9+6+5+9+3) = 54 that is divisible by 9 so the number 77896593/9 = 8655177.

Example: 778965939: (7+7+8+9+6+5+9+3+9) = 63 that is divisible by 9 so the number 778965939/9 = 1086551771.

Example: 999988875: (9+9+9+9+8+8+8+7+5) = 72 that is divisible by 9 so the number 999988875/9 = 111109875.

Example: 33778899999: (3+3+7+7+8+8+9+9+9+9) = 81 that is divisible by 9 so the number 33778899999/9 = 3753211111.

Example: 99999888876: (9+5+2+2) = 90 that is divisible by 9 so the number 99999888876/9 = 11111098764.

Example: 19873895896989: (1+9+8+7+3+8+9+5+8+9+6+9+8+9) =99 that is divisible by 9 so the number 19873895896989/9 = 2208210655221.


Note: So Before going to divisible by 9 any number, first check the condition of  All digit sum is divisible by 9 .Than numbers is divisible by 9.


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