Enter a number : 407 407 is an Armstrong number Here, we ask the user for a number and check if it is an Armstrong number . We need to calculate the sum of the cube of each digit. So, we initialize the sum to 0 and obtain each digit number by using the modulus operator %. The remainder of a number when it is divided by 10 is the last digit of ... An Armstrong Number is defined as the sum of the nth power of each digit to an n-digit number that is equal to that number . Confused! Don’t worry. In this article, we will discuss everything about the Armstrong Number with the help of examples, and later in the article, we will also discuss how to check whether the given number is Armstrong Number or not using C programming. Understand the concept of Armstrong numbers in Data Structures and Algorithms (DSA). Explore step-by-step explanations, examples, and efficient code implementations to solve Armstrong number problems.