For such enormous numbers, even Karatsuba's algorithm is too slow. A real breakthrough came in 1971 with the work of the German mathematicians Arnold Schönhage and Volker Strassen.

Learn what an algorithm is with this KS1 primary computing guide from BBC Bitesize for years 1 and 2. We will define what an algorithm is and how they work.

But in our case, as in Musk’s, we often made our lives more difficult by inadvertently skipping a step or two and having to go backward. (Even so, over the course of 10 months, we cut job ...