Answer Posted / adnan sheikh

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

main()
{
int i,j,num;
cout<<"enter nay number";
cin>>num;
j=static_cast<int>(num/2);
for(int i=2;i<=j;i++)
{
if(!(num%i))
break;
}
if(i==(j+1))
cout<<"number is prime";
else
cout<<"number is not prime";
getch();
}

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