埃拉托斯特尼筛法是求不超过自然数N(N>1)的所有质数的一种方法。
Eratosthenes sieve method is a method to search for all prime numbers less than natural number N ( N > 1 ).
埃拉托斯特尼筛法及改进(C++语言)
Sieve Method to Search for Prime numbers and Improvement ( C Programming Language )