Division
Division is an arithmetic operation. The operation of determining how many times one quantity is contained in another.
Test for Divisibility
1. Divisible by 2
When its unit's digit is even or 0.
eg: 524. Here the last digit is an even number then it can be easily divisible by 2
2. Divisible by 3
When the sum of its digits is divisible by 3.
eg: Let 27 is a number. To find whether it is divisible by 3 add the digit's ie 2+7=9. Nine is divisible by 3.
3. Divisible by 4
When last two digit is divisible by 4 then the number is divisible by 4. And also if last two digit are 0, then the number is divisible by 4.
eg: Let 448÷4
Since the last two digit is divisible by 4, the number 448 can be divisible by 4.
4. Divisible by 5
If the last digit is 5 or 0 then the number can be divisible by 5.
eg: 335 Since the last digit is 5 then the number can be divided by 5.
5. Divisible by 6
When it is divisible by both 2 and 3.
eg: Consider the number 738. Since it has the factors 2 and 3, the number is easily divisible by 6.
6. Divisible by 8
When the number formed by last three right hand digits is divisible by 8, or when last three digit are 0's.
7. Divisible by 9
When the sum of the digits is divisible by 9.
eg: 2304. The sum of the digits is 2+3+0+4=9, which is divisible by 9
8. Divisible by 10
When it's unit's digit is 0.
9. Divisible by 11
When difference between the sum of the digits in the odd and sum of the digits even places is 0 or a multiple of 11.
10. Divisible by 12
when it is divisible by both 3 and 4.
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