Strong Number in C

Here you will get program for strong number in C.

What is Strong Number?

A number in which the sum of factorial of individual digits is equal to the number is called strong number.

For example, 145 is a strong number because 145=(!1)+(!4)+(!5)=1+24+120=145

The below C program will check whether a given number in strong number or not.

Program for Strong Number in C

#include<stdio.h>

int fact(int n){
	int i,fac=1;
	
	for(i=1;i<=n;++i){
		fac*=i;
	}
	
	return fac;
}

int main(){
	int n,t,sum,m;
	
	printf("Enter a number:");
	scanf("%d",&n);
	
	m=n;
	
	while(m!=0){
		t=m%10;
		sum+=fact(t);
		m=m/10;
	}
		
	if(sum==n){
		printf("Strong Number");
	}
	else{
		printf("Not Strong Number");
	}
	
	return 0;
}

Output

Comment below if you are facing any difficulty to understand above strong number in C program.

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