The above method is the most straightforward method to check for Armstrong number in C, but we can also use other methods. Following are some commonly used methods to check for Armstrong number in C: Using Recursion We can convert the iterative method discussed above into recursive method by considering only a single digit of the number in each recursive call and calling the function again for the number with remaining digits. In this article, we will learn how to check Armstrong Numbers in Java. What is Armstrong 's Number ? In a mathematical number system, the Armstrong number is the number in any given number base, which makes the total of the same number when each of its digits is raised to the power of the total number of digits in the number . The idea is to determine if a number is an Armstrong number by first converting it to a string to easily access its digits and count them. Each digit is then raised to the power of the total number of digits, and the results are summed. If this sum is equal to the original number , it is classified as an Armstrong number . In this example, you will learn to check whether an integer entered by the user is an Armstrong number or not using while loop and if...else statement.
