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Show that every even natural number grater than $2$ can be expressed as a sum of two prime numbers. No idea how to prove this. Can you help? thanks

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You might want to have a look at this: en.wikipedia.org/wiki/Goldbach%27s_conjecture –  Abel May 2 '13 at 14:54
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Let me know if you find a proof of this. We can publish it together :-). –  user17762 May 2 '13 at 14:55
    
You are not alone. –  Rankeya May 2 '13 at 14:55
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Tough course you are taking, if this is homework! Solving it would put you on the front pages of newspapers. –  André Nicolas May 2 '13 at 14:59
    
@AndréNicolas: Some of the conjectures in the past were solved by mistake in the past.(Teachers left them as open problems in home assignments). –  Inceptio May 2 '13 at 15:06

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This is known as Goldbach's conjecture. This still remains unproved till date. I bet you will make a great fame if you find the proof. All the best with that.:)

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got it, my lecturer trolled me, didn't know of this conjecture, thanks for link –  bateman May 2 '13 at 15:01

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