Perfect Number in C

In this article is another simple program to show you how to solve perfect number using C language. The code is very simple and easy to understand I am using Code Blocks to write this code.

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Sample Program Output

Program Listing

perfect.c

#include <stdio.h>

int main()
{
    int number=0, rem=0, sum = 0, a=0;

    printf("Perfect Number in C");
    printf("\n\n");
    printf("Enter a Number : ");
    scanf("%d", &number);
    for (a = 1; a <= (number - 1); a++)
    {
        rem = (number % a);
if (rem == 0)
        {
            sum = sum + a;
        }
    }
    if (sum == number) {
        printf("\n\n");
        printf("The given number %d is perfect number.", number);
        printf("\n\n");
    }
    else {
        printf("\n\n");
        printf("The given number %d is not a perfect number.",number);
        printf("\n\n");
    }
     printf("\n\n");
    return 0;

}