# 204. Count Primes

![](https://3217298702-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M5BYNv0H5fXhaR-4sW4%2F-M76oYuL_tYHG0lxQzGA%2F-M7DgIvm5Erxvxd1axdI%2FSieve_of_Eratosthenes_animation.gif?alt=media\&token=21717867-614f-48ed-9f2e-063e86d2db7b)
