Feb 26, 2025 · In this example, the Python code reverses a given number using a while loop. It prints both the original and reversed numbers. The example demonstrates reversing the number 6789. Explanation: number n1 is processed by repeatedly extracting its last digit, appending it to rev, and then removing the last digit from n1 using the // operator.

In this program, while loop is used to reverse a number as given in the following steps: First, the remainder of the num divided by 10 is stored in the variable digit. Now, the digit contains the last digit of num, i.e. 4. digit is then added to the variable reversed after multiplying it by 10.

Mar 19, 2025 · In each recursive call, the function processes the current digit by dividing n by 10 to reduce it and adding the last digit (n % 10) to revNum, scaled by the basePos. The basePos is then multiplied by 10 to move to the next place value.

Mar 20, 2025 · The most simple way to reverse a number in Python is to convert it to a string, reverse the string, and convert it back to an integer: """ Reverse a number using string conversion. Args: number: The number to reverse. Returns: The reversed number. """ # Handle negative numbers. if number < 0: return -int(str(-number)[::-1])

Mar 10, 2014 · Best way to loop over a python string backwards says the most efficient/recommended way would be: upvote for you since I forgot about the inverse slice operator. Why make it a number? 'In reverse' implies a string. So don't cast it to int but use it as string instead and just loop over it backwards.

We will develop a program to reverse a number in python using for loop. To reverse a number we need to extract the last digit of the number and add that number into a temporary variable with some calculation, then remove the last digit of the number. Do …

Oct 23, 2021 · Python makes it easy to reverse a number by using a while loop. We can use a Python while loop with the help of both floor division and the modulus % operator. Let’s take a look at an example to see how this works and then dive into why this works: digit = number % 10 . reversed_number = reversed_number * 10 + digit.

Jan 5, 2024 · To reverse a number using a while loop, one can use the floor division and modulus operator. For example, to print the first 10 natural numbers in reverse order, one can use the for loop. Another way to reverse a number is to use the modulus operator.

Mar 31, 2025 · Output:. Reversed Integer: 654321 Code language: Python (python) 2. Using a Mathematical Approach. The mathematical approach to reversing an integer involves extracting each digit from the number and building a new reversed number.This method does not rely on converting the number into a string but instead uses modulus (%) and division (//) operations. ...

In this tutorial, we are going to learn how to reverse a given number in Python by making the reverse of digits. So let’s get started. To reverse a given number we need to follow some steps. Steps to follow: User has to enter a value. Divide the number with 10 to remove last digit. Print the reverse number.