PROGRAM TO CHECK WHETHER A GIVEN NUMBER IS PRIME OR NOT

/*PROGRAM TO CHECK WHETHER A GIVEN NUMBER IS PRIME OR NOT*/

#include<conio.h>

#include<iostream.h>

class prime_no

{

int n,i,f;

public:

void input();

void output();

};

void prime_no::input()

{

cout<<“Enter any number: “;

cin>>n;

}

void prime_no::output()

{

f=0;

for(i=2;i<=(n/2);i++)

{

if(n%i==0)

f=1;

}

if(f==0)

cout<<n<<” is a prime number”;

else

cout<<n<<” is not a prime number”;

}

void main()

{

prime_no p1;

clrscr();

p1.input();

p1.output();

getch();

}