This Article lists down the Divisibility Rules of numbers (till 20). To have a look at a few examples watch the video above.

- 2 – Unit’s digit of the number shall be even or 0
- 3 – Sum of the digits of the number shall be divisible by 3
- 4 – Last 2 digits of the number shall be divisible by 4
- 5 – Number shall end in 0 or 5
- 6 – Number shall be divisible by 2 and 3
- 7 – Unit’s digit of the number is multiplied by 2 and
from the remaining digits and the number obtained shall be divisible by 7((Repeat the cycle as many times as needed)**subtracted** - 8 – Last 3 digits of the number shall be divisible by 8
- 9 – The sum of the digits of the number shall be divisible by 9
- 10 – Number shall be divisible by 2 and 5
- 11 – The difference of the sum of digits at odd and even places is either 0 or a multiple of 11 (
)**Always start from the right** - 12 – Number shall be divisible by 4 and 3
- 13 – Unit’s digit of the number is multiplied by 4 and
to the remaining digits and the number obtained shall be divisible by 13 (Repeat the cycle as many times as needed)**added** - 14 – Number shall be divisible by both 2 and 7
- 15 – Number shall be divisible by 5 and 3
- 16 – Last 4 digits of the number shall be divisible by 16
- 17 – Unit’s digit of the number is multiplied by 5 and
from the remaining digits and the number obtained shall be divisible by 17 (Repeat the cycle as many times as needed)**subtracted** - 18 – Number shall be divisible by 2 and 9
- 19 – Unit’s digit of the number is multiplied by 2 and
to the remaining digits and the number obtained and the number obtained shall be divisible by 19 (Repeat the cycle as many times as needed)**added** - 20 – Number shall be divisible by 4 and 5