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To find a number is perfect or not:

#include<stdio.h>
#include<conio.h>
void main()
{
int n,s=0,i;
clrscr();
printf("ENter the number\n");
scanf("%d",&n);
for(i=1;i<n;i++)
{
if((n%i)==0)
{
printf("Factors of %d=%d\n",n,i);
s=i+s;
}
}
if(s==n)
printf("Number is perfect\n");
if(s!=n)
printf("Number is not perfect\n");
getch();
}

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