Introduction - If you have any usage issues, please Google them yourself
Example: Method 2 with the screening of all prime numbers between 100. Solution: We use the following method to solve this problem: first the establishment of a containing between 2 to 100 the number of all natural numbers table, delete table 2 in the number of multiples (not including 2) and then find the back of the first to be reserved 2 number p (a 3), then delete multiple of p (excluding p) and then find the next number to be reserved (was 5), continue the steps: continue to do so until the P is greater than 100 so far. So that the remaining number of tables is required for all prime numbers. This request is called Ai Latuo prime numbers scattered (Eratosthenes) method.