Checking if a number is divisible by another number in Python

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In this tutorial, we are going to learn about how to check if a number is divisible by another number in Python with the help of examples.

Consider, we have the following number:

To find if an above number 10 is divisible by another number, we should divide the first number by second and get the remainder 0 then only we call it’s a divisible of another number otherwise it is not a divisible.

For example: 10%5 = 0

Using % Modulo operator

To check if a number is divisible by another number, we can use the % modulo operator in Python.

The module % operator returns the remainder of two numbers 100 % 10 = 0so if we get a remainder 0 then the given number is a divisible of another number otherwise it is not a divisible.

Here is an example:


if 10 % 5 == 0 :
   print("10 is divisible by 5")
else:
   print("10 is not divisible by 5")

Output:

In the above code we have added 10 % 5 == 0 in if condition, so 10 is divided by 5 and returns the remainder 0 then it prints the output “10 is divisible by 5”.

Example 2:

if 20 % 4 == 0 :
   print("20 is divisible by 4")
else:
   print("20 is not divisible by 4")

Output:

Checking if a number is not divisible by another

To check if a number is not divisible by another number, we can use the modulo operator % but the remainder of first number by second number is not equal to 0.

Here is an example:

if (23 % 10 != 0):
    print ("23 is not divisible by 10")

In the above code, 23 is divided by 10 and returns the remainder 3. So the given number is not divisible by 10.

Source

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