In this article we will learn to implement a C program for perfect number. A C program is provided below to check whether the given number is a perfect number or not.
Examples of perfect numbers are: 6, 28, 496, etc.
Program is as follows:
#include<stdio.h>
int main()
{
int n;
printf("Enter a number: ");
scanf("%d", &n);
int sum = 0;
for(int i = 1; i < n; i++)
{
if(n % i == 0)
sum += i;
}
if(sum == n)
printf("%d is a perfect number", n);
else
printf("%d is not a perfect number", n);
return 0;
}
Input and output for the above program is as follows:
Enter a number: 28
28 is a perfect number
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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