Divisibility by 2
If the last digit is zero or even number, we can divide this number by 2
Example: 12, 86, 630
Divisibility by 3
If the sum of all digits of the number is divisible by 3
Example: 345, 3+4+5= 12 is multiple of 3
Divisibility by 4
If the last two digits are divisible by 4, then the number is divisible by 4
Example: 7532, last two digits are multiples of 4
Divisibility by 5
if the last digit is 0 or 5, We can divide that number by 5
Example: 35,655, 295,..
Divisibility by 6
If a number is divisible by 2 or 3, then the number is divisible by 6
Example: 18, 60, 720,..
Divisibility by 7
Follow these steps
Take the last digit and double it.
Subtract this number from the rest of the digits in the original number.
If the number is divisible by 7, the whole number is divisible by 7
For example, take 294
Last digit = 4
Double 4 = 8
29 - 8 = 21 which is a multiple of 7.
Divisibility by 8
If the last three digits of a given number are zeros or if the number formed by the last three digits is divisible by 8, then such a number is divisible by 8
Example: 9000, 6128
Divisibility by 9
If the sum of digits of the number is divisible by 9, then the whole number is divisible by 9.
Example: 45125
4+5+1+2+5 = 17 which is not a multiple of 9. So 45125 is not divisible by 9
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