Mar 18, 2019 · So I can see that we have right answers for different questions here; for a prime number generator gen_primes looks like the right answer; but for a prime number check, the …

Amazing to see the number of answers, when the question is absolutely impossible to answer without knowing the range of numbers to be covered. If you want all prime numbers, there is …

Feb 6, 2010 · Here's a generator that's a little truer to how it's done in Haskell: filtering against composites of known primes, then adding the remaining primes to the list.

All these prime generation functions are toys really, the real stuff is working with the very big numbers, using completely different algorithms anyway. Here in the low range, what matters is …

Sep 7, 2014 · Sieve of Eratosthenes: Most efficient prime generator algorithm Taken from here: Simple Prime Generator in Python - an answer by Eli Bendersky. It marks off all the multiples …

Dec 23, 2013 · 3 I've been trying to solve the SPOJ problem of Prime number Generator Algorithm. Here is the question Peter wants to generate some prime numbers for his …

Apr 23, 2015 · The above example doesn't generate prime numbers but tests them. You could adapt the same optimizations to your code :) One of the more efficient algorithms I've found …

Jul 24, 2015 · If you were in a large system, then one would use a profiler to find that the prime number generator is the part that needs optimizing. Profiling a loop with a dozen or so …

3 Eliminating numbers dividable by prime numbers (2,3,5,7 etc.) is a not soo bad idea when you look for a list of (small) prime numbers but you should use the newly found prime numbers too …

Jan 15, 2010 · Years ago, pseudo-code for a version of Atkin's sieve was given on the Wikipedia page Prime number. This isn't there anymore, and a reference to the Sieve of Atkin seems to …