 # Python Program to reverse a number

In this simple python program, we have to reverse a number. It is a beginner-level python program.

To understand this example, you should have knowledge of the following Python programming topics:

## What is the reverse of a number?

In this simple python program, we need to reverse a number. Reversing a number means we are printing the number in reverse order. For example, if we have a number 12345, we have to print that as 54321 using python.

## How to find the reverse of a number in python?

To solve this beginner python problem on a number, we are using the Mod operator by 10 to take the last digit of the number. Then we calculate the reverse by taking the reverse variable * 10 + the digit that we extracted from the previous step. Finally, divide the number by 10 removing the last digit, and take the next digit in the next iteration of the `while loop`. The while loop in python will continue until the number is equal to zero. Then print the number using `print` statement in python basic syntax.

### ALGORITHM

STEP 1: Enter the number using the input method and convert that string to an integer using the python programming language.

STEP 2: Initialize a variable as zero to store the reversed number.

STEP 3: Use a `while loop` until the number is greater than zero. This loop will continue to get the whole number reversed.

STEP 4: Extract the digit from the number using the Mod operator in python.

STEP 5: Calculate the reverse using the formula rev*10 + digit. (multiplying with 10 to get the digit in the proper position.)

STEP 6: Split the number and remove the last digit by dividing the number by 10.

STEP 7: printing the result as a reversed number using print statements in python language basics.

## Python Source Code

```                                          ```n=int(input("Enter number: "))

rev=0

while(n>0):

dig=n

rev=rev*10+dig

n=n//10

print("Reverse of the number:",rev)```
```

## OUTPUT

```Enter number:12345

Reverse of the number: 54321```
VIEW ALL
VIEW ALL
VIEW ALL