APC-PRAC-017.c

Problem Statement

APC-PRAC-017.c

Write a program to check perfect number.

Source Code

#include <stdio.h>

int main()
{
    int num, i, divisibleSum = 0;
    printf("Enter a number : ");
    scanf("%d", &num);
    for (i = 1; i <= num / 2; i++)
    {
        if (num % i == 0)
        {
            divisibleSum += i;
        }
    }
    if (divisibleSum == num)
        printf("\nInput %d ia a Perfect Number.", num);
    else
        printf("\nInput %d is NOT a Perfect Number.", num);
    return 0;
}

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● Author - Amit Dutta · Updated - 12 Dec 2025