Python uses Karatsuba multiplication for its long integers. This works very well for not too big long integers but when they get huge using the GMPy module is m

Python uses Karatsuba multiplication for its long integers. This works very well for not too big long integers but when they get huge using the GMPy module is much quicker. If you want to see a practical demo of that when calculating pi see: https://www.craig-wood.com/nick/articles/pi-chudnovsky/ https://www.craig-wood.com/nick/articles/pi-chudnovsky/