# Divisibility Rules

### By Gabrielle Mathew and Diana Joseph

## Divisibility rules for 2, 3, 4, 6

__2- The last digit of the given number should be even. That means the number should end in 0, 2, 4, 6 and 8. Ex: Is 1875494 divisible by 2?__Last digit is 4 and it is even number so this fat number__1875494__is divisible by 2.**3- **__Add up all the digits and it should be multiple of 3 (divisible by 3). Ex: Is 2742204 divisible by 3? ____Add up all the digits that is 2+7+3+4+2+2+0+4=24. 24 is divisible by (8×3)/3 so this number 2742204 is divisible by 3 as well.__

__4- ____The last 2 digit (ones and tens) should be divisible by 4. Ex: Is 8763424 divisible by 4? ____Check the last 2 digits, that is 24 and 24 is divisible by (4×6) /3 so this big number 8763424 is divisible by 4.__

**6- ****The rule for checking whether a number is divisible by 6 is quite tricky. Since 6=2×3 **__We must apply the rules of 2 and 3 on a number to check if it is divisible by 6. So rules are t____he last digit should be even number and add up all the digits and it should be multiple of 3 __

## Divisibility rules for 5, 9, and 10

__5- The last digit should be 0 or 5. Ex: Is 498730 divisible by five? T__

__he last digit is 0 so this number 498730 is divisible by 5. Ex: Is 285 divisible by 5?__

__The last digit is 5 so 285 is divisible by 5.____9- __**Add up all the digits and it should be multiple of 9 (divisible by 9). Ex: Is 2742234 divisible by 9? **__Add up all the digits: 2+7+3+4+2+2+3+4=27 and 27 is divisible by 9 (9×3=27) so this number 2742234 is divisible by 9.__

__10- __**The last digit should be 0 (Multiples of 10). Ex: Is 100 multiple of 10? Yes, it has a zero in the end.**

## Video

**For me, the hardest rule is 3. Wellll, luckily, we have Gabby the host of her talk show, the Gabby show and her guest Darla to understand this concept.**