APC-PRAC-021.c

Problem Statement

APC-PRAC-021.c

Write a program to check special number (sum of digit + product of digit = original number)

Source Code

#include <stdio.h>

int main()
{
    int num, temp, sumOfDigit = 0, productOfDigit = 1;
    printf("Enter the number to check if it is a special number : ");
    scanf("%d", &num);
    temp = num;
    while (temp > 0)
    {
        sumOfDigit += temp % 10;
        productOfDigit *= temp % 10;
        temp /= 10;
    }
    temp = sumOfDigit + productOfDigit;
    if (num == temp)
        printf("\nInput %d is a special number.", num);
    else
        printf("\nInput %d is not a special number.", num);
    return 0;
}

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● Author - Amit Dutta · Updated - 12 Dec 2025