A number is divisible by: |
If: |
2 |
The last digit is even (0, 2, 4, 6, or 8). |
3 |
The sum of the digits is divisible by 3. |
4 |
The number formed by the last two digits of the original number is divisible by 4. |
5 |
The number ending in a 0 or a 5. |
6 |
The number is divisible by both 2 and 3. |
7 |
The last digit of the number is multiplied by 2 and subtracted from the rest of the number and the answer is either 0 or divisible by 7. |
8 |
The last three digits form a number divisible by 8. |
9 |
The sum of the digits is divisible by 9. |
10 |
The last digit is 0 |
11 |
You add every second digit and then subtract all other digits and the answer is zero or a multiple of 11. |
12 |
The number is divisible by both 3 and 4. |
13 |
You remove the last digit from the number, then subtract 9 times the deleted digit from the remaining number. If what is left is divisible by 13, then so is the original number. |
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