bool isPrime(int x)
{
int limit =sqrt(x);
for (int i = 3; i <= limit; i=i+1)
{
if (x % i == 0)
{
return false;
}
}
return true;
}
int main()
{
int primeCount = 1;
for (int i = 3; i < 1000000; i=i+2)
{
int limit =sqrt(i);
for (int i = 3; i <= limit; i=i+1)
{
if (limit % i == 0)
{
++primeCount;
}
}

}
printf("%d",primeCount);

}