Work on primes to be performed. dump has been created to avoid recalculation each time.
But I 'll spend some time working on sieves.
Signed-off-by: Julien Lengrand-Lambert <julien@lengrand.fr>
Some code coming from the internet has been put in utils.
Solution was not used, but seems more elegant.
Signed-off-by: Julien Lengrand-Lambert <julien@lengrand.fr>