login/create account
Sum of prime and semiprime conjecture
Conjecture Every even number greater than
can be represented as the sum of an odd prime number and an odd semiprime .
can be represented as the sum of an odd prime number and an odd semiprime . Bibliography
* indicates original appearance(s) of problem.
Drupal
CSI of Charles University
surely that's Chen's theorem
Every sufficiently large even number is the sum of either 2 primes or a prime and a semiprime.