Perfect Number

Perfect number:- Sum of the factorials of a individual digit is known as Perfect number

#include<stdio.h>
#include<conio.h>
void main( )
{
    int no, rem, sum=0, temp, fact;
    clrscr( );
    printf("Enter the required number:");
    scanf("%d", &no);
    temp=no;
    while(no>0)
    {
        fact=1;
        for( rem= no%10 ; rem>=1; rem--)
        {
            fact=fact*rem;
        }
        sum = sum+ fact;
        no = no/10;
    }
    if(temp == sum)
    printf("\n%d is Perfect number", temp);
    else
    printf("\n%d is not a Perfect number", temp);
    getch();
}

Output:-
Enter the required number: 145

145 is Perfect number.