Question

use of divisibilty test in calculation

Answer 1

divisible by 2 ------unit digit of number is even
divisible by 3-------sum of digit of number is divisible by 3
divisible by 4 --------last two digit of number is divisible by 4
divisible by 5 -----unit digit of number is either 0 or 5
divisible by 6 -----if number got divided by 2 or 3

divisible by 8 ------last tree digit is divisible by 8
divisible by 9 -------if sum of digit of number is divisible by 9
divisible by 10 -------unit digit is 0
divisible by 11 ---------difference between sum of odd place number and even place number is either 0 or 11

Answer 2

Divisibility by 1--------all numbers Divisibility by 2 --unit digit of the number is even Divisibility by 3-sum of digits of number is divisible by 3 Divisibility by 4 --last two digit of the number is divisible by 4 Divisibility by 5 -unit digit of number is 0 or 5 Divisibility by 6 --if the number gets divided by 2 or 3 Divisibility by 8 -last three digits are divisible by 8 Divisibility by 9 --if sum of digit of number is divisible by 9 Divisibility by 10 --unit digit is 0 Divisibility by 11 -difference between sum of odd numbers and even numbers is either 0 or 11