Contents

# Sieve

Use the Sieve of Eratosthenes to find all the primes from 2 up to a given
number.

The Sieve of Eratosthenes is a simple, ancient algorithm for finding all
prime numbers up to any given limit. It does so by iteratively marking as
composite (i.e. not prime) the multiples of each prime,
starting with the multiples of 2.

Create your range, starting at two and continuing up to and including the given limit. (i.e. [2, limit])

The algorithm consists of repeating the following over and over:

- take the next available unmarked number in your list (it is prime)
- mark all the multiples of that number (they are not prime)

Repeat until you have processed each number in your range.

When the algorithm terminates, all the numbers in the list that have not
been marked are prime.

The wikipedia article has a useful graphic that explains the algorithm:
https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes

Notice that this is a very specific algorithm, and the tests don't check
that you've implemented the algorithm, only that you've come up with the
correct list of primes.



## Source

Sieve of Eratosthenes at Wikipedia [http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes](http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes)

## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.

Version data entries

165 entries across 165 versions & 1 rubygems

Version	Path
trackler-2.2.1.139	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.138	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.137	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.136	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.135	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.134	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.133	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.132	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.131	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.130	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.129	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.128	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.127	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.126	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.125	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.124	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.123	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.122	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.121	tracks/kotlin/exercises/sieve/README.md
trackler-2.2.1.120	tracks/kotlin/exercises/sieve/README.md