Taking submissions?

[jxu]

I wrote some number theory functions here (not optimized) at https://github.com/jxu/PyPE/blob/master/src/number.py

[cheran-senthil]

Most of the number theory in PyRival is stuff that I have personally researched and optimized over many iterations; if you can prove that your code is faster with benchmarks, I will be happy to take a look.