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Ian

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26 Jan 2010 Variable Precision Integer Arithmetic Arithmetic with integers of fully arbitrary size. Arrays and vectors of vpi numbers are supported. Author: John D'Errico

Great work!

I got this as a reference and guide as I attempt to write my own Quadratic Sieve.

I noticed an issue on your legendresymbol. I think you have the 'iseven' check under p==2 backwards.

for instance: legendresymbol(87463,2) = 0. I expect '1'.

Thanks for such a great toolbox.

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