int i,n;
scanf("%d",&n);
i = 2; // This step is a highlight! !
while(i<n)
{
if(n%i==0)
break;
i++;
}
if(i==n)
printf ( "This is a prime number");
int i,n;
scanf("%d",&n);
i = 2; // This step is a highlight! !
while(i<n)
{
if(n%i==0)
break;
i++;
}
if(i==n)
printf ( "This is a prime number");