| A | B |
|---|
| 2's | If the number is an even number (2,4,6,8,0) |
| 3's | If the integers add up to a sum that is a multiple of 3. |
| 4's | If the last two digits is divisible by this number. |
| 5's | If the last digit ends in a 0 or 5. |
| 6's | If 2 an 3 work then this rule works. |
| 12's | If 3 and 4 work then 12 works. |
| 8's | If the last 3 digits are divisible by this number. |
| 9's | If the integers add up to a sum that is a multiple of 9 |
| 10's | If the last digit ends in a 0. |
| 15's | If 3 adn 5 work then 15 work. |
