The divisibility rules for numbers 1-12 helps to check whether a number is exactly divisible by the other number.
The rules are illustrated with clear examples for easier understanding. Click the rules to find the explanation with examples.
|Divisible By||Rules of Divisibility|
|2||The last digit or the unit digit is even (0,2,4,6,8).|
|3||The sum of the digits is divisible by 3.|
|4||The last two digits are divisible by 4.|
|5||The unit digit or last digit is 0 or 5.|
|6||Number divisible by both 2 and 3.|
|7||The last digit is multiplied by 2 and subtracted from the rest of the number. The result is either 0 or divisible by 7.|
|8||The last three digits are divisible by 8.|
|9||The sum of the digits is divisible by 9.|
|10||The unit digit is zero.|
|11||The sum of the even digits is subtracted from the sum of the odd digits. The result is either 0 or divisible by 11.|
|12||Number divisible by both 3 and 4.|
Without much calculation, the above divisibility tests for numbers 1-12 helps to solve the problems of division.