Write a program to print out all Armstrong numbers or Narcissistic number between 1 and 500. If sum of cubes of each digit of the number is equal to the number itself, then the number is called an Armstrong number.
Related Read:
Nested While Loop: C Program
C Program to Check Armstrong Number
For Example:
407 = (4*4*4)+(0*0*0)+(7*7*7)
407 = (64) + (0) + (343)
407 = 407
Hence, 407 is a Armstrong number.
Nested While Loop
In this program we are using nested while loop to check for Armstrong numbers from 1 to 500.
Outer while loop loops from 1 to 500, by incrementing value of count by 1. Inner while loop checks every value of count to determine if the value is a Armstrong number or not.
Logic for Finding Armstrong Number
We’ve explained the logic to find Armstrong number in detail, in our previous video tutorial. Kindly visit C Program to Check Armstrong Number
C Program to print Armstrong Numbers between 1 and 500
[youtube https://www.youtube.com/watch?v=PthvSOapNxc]
Source Code: C Program to print Armstrong Numbers between 1 and 500
#include < stdio.h > int main() { int num, count = 1, rem, sum; while(count <= 500) { num = count; sum = 0; while(num) { rem = num % 10; sum = sum + (rem * rem * rem); num = num / 10; } if(count == sum) { printf("%d is a Armstrong number\n", count); } count++; } return 0; }
Output:
1 is a Armstrong number
153 is a Armstrong number
370 is a Armstrong number
371 is a Armstrong number
407 is a Armstrong number
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