Rules Of Divisibility

Front 1

2

Back 1

Last digit even number

Front 2

3

Back 2

Sum of digits must be multiple of 3

Front 3

4

Back 3

Last two digits divisible by 4

Front 4

5

Back 4

Last digit a 0 or 5

Front 5

6

Back 5

Must be divisible by 2 or 3

Front 6

8

Back 6

Last three digits must be multiple of 8

Front 7

9

Back 7

Sum of digits be a multiple of 9

Front 8

10

Back 8

Last digit 0