Divisibility

Divisibility Rules of 1-12

by KRISHA K S

What is divisibility Rules ? How is it Helpful ?

Divisibility Rules Helps us to find put whether a number is divisible by a number or not without doing division. It is normally used for a big number.

Poll

Did you Understand it ?

• Yes

• No

​Rule of 2

​We can divide any number ending with a even number ( 0, 2, 4, 6, 8 ) By 2. Any odd number will not be divisible by 2.

​Example :-

​23435 is not divisible by 2 because it ends with a odd number.

​143678 is divisible by 2 because it

​ends with a even number.

Poll

Did you understand ?

• yes

• no 

Multiple Select

Click the options you think will be divisible by 2.

• 12497

• 90

• 2353

• 78914

​Rule of 3

​for 3 the steps are :-

​1. Add all the digits in the number

​2. check whether the answer is there in 3 tables.

​3. If its there its divisible if its not there its not divisible.

​Example:-

​231 is divisible by 3 because 2+3+1=6 and 6 is in 3 tables so its divisible.

​251 is not divisible by 3 because 2+5+1=8 and 8 is not in the 3 table so its not divisible.

Poll

Did you understand ?

• yes

• no 

Multiple Select

Click the options you think will be divisible by 3.

• 12497

• 60

• 231

• 523

Rule of 4

​For 4 :-

​You need to look at the last 2 digits of the number. If its divisible or in 4 tables the number is divisible by 4.

​Example :-

​9816 is divisible because the last 2 digit- 16 is in the 4 tables.

​7326 is not divisible because the last 2 digit- 26 is not in the 4 tables

Poll

Did you understand ?

• yes

• no 

Multiple Select

Click the options you think will be divisible by 4.

• 7563848

• 278

• 232

• 5

​Rule of 5

​Any number ending with 5 or 0 is divisible by 5.

​Example :-

​85945 is divisible because its ending with 5

​8976390 is also divisible because its ending with 0.

​789 is not divisible because its not ending with 5 or 0.

Poll

Did you understand ?

• yes

• no 

Multiple Select

Click the options you think will be divisible by 4.

• 89789345

• 278

• 6542890

• 873923

​Rule of 6

​Any number divisible by both 2 and 3 is divisible by 6 .

even if a number is not divisible by 2 but is divisible 3 is not divisible by 6.

​The result will be same vice-versa.

Poll

Did you understand ?

• yes

• no 

Multiple Select

Click the options you think will be divisible by 4.

• 12

• 24

• 60

• 12345