# Some Important Divisibility Rules Fast Calculation Maths

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Hello Students,

Today we are providing you Divisibility Rules. This is useful Short Tricks for Maths. You can divide numbers in just few seconds using these tricks. Learn More Below:

## Some Important Divisibility Rules Fast Calculation Maths

1. Divisibility by 2: A number is divisible by 2 if its unit’s digit is even or 0.
2. Divisibility by 3: A number is divisible by 3 if the sum of its digits are divisible by 3.
3. Divisibility by 4: A number is divisible by 4 if the last 2 digits are divisible by 4, or if the last two digits are 0’s.
4. Divisibility by 5: A number is divisible by 5 if its unit’s digit is 5 or 0.
5. Divisibility by 6: A number is divisible by 6 if it is simultaneously divisible by 2 and 3.
6. Divisibility by 7: A number is divisible by 7 if unit’s place digit is multiplied by 2 and subtracted from the remaining digits and the number obtained is divisible by 7.
7. Divisibility by 8: A number is divisible by 8 if the last 3 digits of the number are divisible by 8, or if the last three digits of a number are zeros.
8. Divisibility by 9: A number is divisible by 9 if the sum of its digits is divisible by 9.
9. Divisibility by 10: A number is divisible by 10 if its unit’s digit is 0.
10. Divisibility by 11: A number is divisible by 11 if the sum of digits at odd and even places are equal or differ by a number divisible by 11.
11. Divisibility by 12: A number is divisible by 12 if the number is divisible by both 4 and 3.
12. Divisibility by 13: A number is divisible by 13 if its unit’s place digit is multiplied by 4 and added to the remaining digits and the number obtained is divisible by 13.
13. Divisibility by 14: A number is divisible by 14 if the number is divisible by both 2 and 7.
14. Divisibility by 15: A number is divisible by 15 if the number is divisible by both 3 and 5.
15. Divisibility by 16: A number is divisible by 16 if its last 4 digits is divisible by 16 or if the last four digits are zeros.
16. Divisibility by 17: A number is divisible by 17 if its unit’s place digit is multiplied by 5 and subtracted from the remaining digits and the number obtained is divisible by 17.
17. Divisibility by 18: A number is divisible by 18 if the number is divisible by both 2 and 9.
18. Divisibility by 19: A number is divisible by 19 if its unit’s place digit is multiplied by 2 and added to the remaining digits and the number obtained is divisible by 19.