C Program to Check given number is Armstrong number or not

Q. Write a C Program to check given number is armstrong number or not

What is Armstrong Number?

– An Armstrong number is a number of three digits which is an integer such that sum of the cubes of its digits is equal to the number itself.

For example,

153 is an Armstrong number, i.e

= 1³ + 5³ + 3³

=((1*1*1)+(5*5*5)+(3*3*3))

= 1 + 125 + 27

=153

Other armstrong numbers are 0, 1, 370, 407…

Source Code:

#include<stdio.h>
#include<conio.h>
void main()
{
	int no1,no2,rem,sum=0;
	clrscr();
	printf("ntEnter Number : ");
	scanf("%d",&no1);
	no2=no1;
	while(no1>0)
	{
		rem=no1%10;
		sum=sum+(rem*rem*rem);
		no1=no1/10;
	}
	if(sum==no2)
		printf("nntGiven number is Armstrong !");
	else
		printf("nntGiven number is Not Armstrong !");
	getch();
}

Output:

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