Errors in smallest divisor program

[abhishekagrawal]

Dear All,

I have written a program to find the smallest divisor of an input number. The code gives me an error in lines 19 and 23. The error is invalid operands to binary %. Please help me to troubleshoot, thank you. Below is my code:

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
int n,r,sdivisor;
double d,sqroot,comp;
printf("Enter the number whose smallest divisor has to be found");
scanf("%d",&n);
if(n%2==0)
{
          printf("the smallest divisor is 2");
}
else 
{
 sqroot=sqrt(n);
 d=3;
}
comp=n%d;
while(comp!=0 & d<sqroot)
{
 d=d+2;
 comp=n%d;
}
if(comp==0)
{
 sdivisor=d;
}
else
{
 sdivisor=1;
}
system("pause");
return 0;
}

Thank you for your reply.