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In this article we will learn to implement a C program for strong number. A C program is provided below to check whether the given number is strong number or not.

 

Examples of strong numbers: 1, 2, 145, etc.

 

Program is as follows:

#include<stdio.h>
int fact(int n)
{
	if(n==0 || n==1)
		return 1;
	else
		return n*fact(n-1);
}
int main()
{
	int n;
	printf("Enter a number: ");
	scanf("%d", &n);
	int dup = n;
	int sum = 0;
	while(n != 0)
	{
		sum = sum + fact(n % 10);
		n = n / 10;
	}
	if(dup == sum)
		printf("%d is a strong number", dup);
	else
		printf("%d is not a strong number", dup);
	return 0;
}

 

Input and output for the above program is as follows:


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Enter a number: 145
145 is a strong number

 

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Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.

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