Prime number calculation sped up + cleanup

[sjvrijn]

The calculations in is_prime(n) only have to run up to sqrt(n), and can skip any number of the form 2n and 3n, leaving those of the form 6n+1 and 6n+5. Cleanup:

• removed redundant parenthesis
• used augmented assignment where possible (+=, *=)
• replaced while (1) with while True
• indented comments to match code indentation

[sjvrijn]

Thanks for the comments, I'll fix them and create a new pull request

[naught101]

I think that if you update though branch the pull request should update automatically, no need to open a new one.

On 29 February 2016 10:17:32 pm AEDT, Sander notifications@github.com wrote:

Thanks for the comments, I'll fix them and create a new pull request

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Reply to this email directly or view it on GitHub: https://github.com/naught101/sobol_seq/pull/4#issuecomment-190161193

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[sjvrijn]

Fixes are up and thanks for the tip, didn't realize that

[naught101]

Great, thank you :)