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Sieve of Eratosthenes

#!/usr/bin/env python # Sieve of Eratosthenes - to find all the prime numbers in range 1 to n # http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes def sieve_of_eratosthenes(n): primes = [] numbers = [] for i in range(2, n+1): numbers.append(i) while numbers: primes.append(numbers.pop(0)) for e in numbers: if not e%primes[-1]: numbers.pop(numbers.index(e)) return primes def is_prime(n): prime_list = sieve_of_eratosthenes(n) if n in prime_list: return True return False
A Python implementation of Sieve of Eratosthenes with functions to find all prime numbers between 1 & n, and to check whether input number is a prime or not.

3 Responses

Isn't it the code to "disable security settings" from the film "Ex_Machina"? :)
@Leszek Lesiewicz Doubt it. I wrote this ~4 years ago.
You're right :)
http://goo.gl/v9nmki

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