3 ms·

Is there an evil twin to the set of prime numbers?

• block_dagger 2y ago
  Every even number?
  • ralusek 2y ago
    2?
    • pwdisswordfishz 2y ago
      Well, this one is pretty evil as prime numbers go.
• fisian 2y ago
  There are the anti prime numbers (also called highly composite numbers).
• OscarCunningham 2y ago
  There are the Lucky Numbers https://en.wikipedia.org/wiki/Lucky_number https://en.wikipedia.org/wiki/Lucky_number. Generated by a variant of the Sieve of Eratosthenes, they're believed to have a similar distribution to the primes while not having similar multiplicative properties.
• amai 2y ago
  The opposite of prime numbers are https://en.wikipedia.org/wiki/Highly_composite_number https://en.wikipedia.org/wiki/Highly_composite_number But I'm not sure if these ones are evil.