What is name of conjecture?

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Every even integer can be expressed as the difference of two primes?

there is one conjecture that I do not know what they are called. This is:

Every even number can be always written as the difference between two prime numbers. Could you please help me to know what it is called?

Regards,

Do you mean difference of two prime numbers or sum of two prime numbers. — GeoffDS, Nov 01 '12 at 19:44
Answered in the comments here: http://mathoverflow.net/questions/111196/what-is-the-name-of-a-conjecture — Dejan Govc, Nov 01 '12 at 20:13

score 1 · Answer 1 · answered Nov 01 '12 at 21:17

1

Polignac's conjecture is what you want. It goes further, stating that there are infinately many prime gaps of size $n$ for every even integer $n$.

answered Nov 01 '12 at 21:17

Ben

1 Answers1