Divisibility Rules and Concepts

A number divisible by 5 and 10

A number divisible by any number

A number divisible by 2 and 3

A number divisible by 1 and itself only

9

7

6

4

2, 3, 5, 7, 11

0, 2, 4, 6, 8

1, 2, 3, 4, 5

1, 3, 5, 7, 9

47

71

56

33

Check if it ends in 0 or 5

Add its digits and see if the sum is divisible by 3

Divide it by 2 and check the remainder

Check if it ends in an even number

Yes

No

Only if it ends in 3

Only if it ends in 0

12, No

14, No

14, Yes

12, Yes

Divide the number by 3 directly

Check if the number ends in 3

Add the digits repeatedly until a single-digit number is obtained

Multiply the digits together

18, Yes

18, No

19, Yes

19, No

5

4

3

2