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Divisibility Rules
Question | Answer |
---|---|
2 | Even number |
3 | The sum of the digits is divisible by 3 |
4 | The last 2 digits are divisible by 4 |
5 | The last digit is 0 or 5 |
6 | The number is divisible by both 2 and 3 |
7 | If you double the last digit and subtract it from the rest of the number and the answer is: 0 or divisible by 7 (May be easier to just divide by 7) |
8 | The last three digits are divisible by 8 |
9 | The sum of the digits is divisible by 9 |
10 | The Number ends in 0 |
11 | Add and subtract digits in an alternating pattern (add first, subtract second, add third, etc). Then the answer must be: 0 or divisible by 11 |
12 | The number is divisible by both 3 and 4 |