| 2 | The last digit is even (0, 2, 4, 6, 8). | 246 (last digit is 6, so divisible by 2) |
| 3 | The sum of the digits is divisible by 3. | 123 (1 + 2 + 3 = 6, divisible by 3) |
| 4 | The number formed by the last two digits is divisible by 4. | 312 (last two digits 12 ÷ 4 = 3, divisible by 4) |
| 5 | The last digit is 0 or 5. | 55 (last digit is 5, divisible by 5) |
| 6 | The number is divisible by both 2 and 3. | 72 (divisible by 2 and 3, divisible by 6) |
| 7 | Double the last digit, subtract it from the rest of the number, and check if the result is divisible by 7. | 203 (Double last digit: 3 × 2 = 6 → 20 - 6 = 14, divisible by 7) |
| 8 | The number formed by the last three digits is divisible by 8. | 1,472 (last three digits 472 ÷ 8 = 59, divisible by 8) |
| 9 | The sum of the digits is divisible by 9. | 729 (7 + 2 + 9 = 18, divisible by 9) |
| 10 | The last digit is 0. | 150 (last digit is 0, divisible by 10) |
| 11 | The difference between the sum of digits in odd positions and even positions is divisible by 11. | 2728 (2 + 2) - (7 + 8) = -11, divisible by 11 |
| 12 | The number is divisible by both 3 and 4. | 240 (divisible by 3 and 4, divisible by 12) |