Answer Posted / waleed

#include<iostream.h>
#include<conio.h>

int prime(int);

void main()
{
clrscr();
int num,x;
cout<<"Enter the no.=";
cin>>num;
x=prime(num);
if(x==1)
{
cout<<"Number is prime";
}
else
{
cout<<"Number is not prime";
}

getch();
}

int prime(int x)
{
int k;
for(int i=2;i<x;i++)
{
if (x%i==0)
{
k=2;
}
}
if (k==2)
return 0;
else
return 1;


}

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