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Divisibility Rules
Question | Answer |
---|---|
2 | The last digit is even |
3 | The sum of the digits is divisible by |
4 | The last two digits are divisible by |
5 | The last digit is 5 or 0 |
6 | It is divisible by 2 and 3 |
7 | Double the last digit. Subtract it from the rest of the number. |
8 | The last three digits are divisible by |
9 | Sum of digits is divisible by |
10 | ends in 0 |
11 | First get the sum of the alternating digits. Then get the sum of the remaining digits. Then subtract the two sums. |