Girfa : Student Help: Perfect Number C Language Program

Q: Write a program to check whether a number is prime or not?
(A number said to be perfect if sum of all factor less than given number then equal to given number)Input : 6

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Girfa Student Help

Perfect Number

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#include<stdio.h>

void main()

{

int n,m,s=0,d;

printf("Enter first Number>> ");

scanf("%d",&n);

m=n;

for(d=1;d<n;d++)

{

if(n%d==0)

s=s+d;

}

if(s==n)

printf("\n\tPerfect Number");

else

printf("\nNot a perfect number");

}