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Quote:

"Chen's work mentioned in the discussion of the Goldbach conjecture also showed that every even number is the difference between a prime and a P2."

from: link

However I can't get this verified or find different sources stating the same.

so question is: is this true? where can i find proof?

thanks.

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  • $\begingroup$ I am not sure why there ate three votes to close. Someone cares to explain? $\endgroup$
    – Joël
    May 11, 2020 at 20:57
  • $\begingroup$ @Joël My guess is that the perception was that this is a simple enough question that a few minutes of research could have found an answer. In this case, I double checked my own answer by typing in "Chen's theorem" into Wikipedia. $\endgroup$
    – JoshuaZ
    May 11, 2020 at 22:09

1 Answer 1

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The two relevant papers for Chen's original proof are Chen, J.R. (1973). "On the representation of a larger even integer as the sum of a prime and the product of at most two primes". Sci. Sinica. 16: 157–176. and Chen, J.R. (1966). "On the representation of a large even integer as the sum of a prime and the product of at most two primes". Kexue Tongbao. 11 (9): 385–386. See here for more details along with related strengthened results.

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