4 ms·

How is that useful?

• healthysurf 5y ago
  Vast majority of my school experience wasn't useful
• HeavenFox 5y ago
  It is very useful in the context of Chinese grade school. There are a lot of exam problems that require factorization, and calculators are banned. Having a list of primes memorized comes really handy.
• Igelau 5y ago
  Frivolous memory tasks as a measurement of bureaucratic aptitude?
  • JoelMcCracken 5y ago
    Lol right because I never had to memorize the multiplication tables, states capitols, electron shell levels and numbers, periodic tables, etc in the US