Catalan Teorema de Chen Cited by user Jordiventura96 on 22 Feb 2015 En teoria de nombres, el teorema de Chen afirma que tot nombre parell prou gran pot ser expressat com a suma de dos nombres primers o d'un primer més un semiprimer (produc…
English Chen's theorem Cited by user Citation bot 1 on 12 Jul 2010 In number theory, Chen's theorem states that every sufficiently large even number can be written as the sum of either two primes, or a prime and a semiprime (the product…