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# I Can't....Can Anybody else?

I have two problems-

1.Find all primes $$p$$ such that there are positive integers $$a$$ and $$b$$ for which $$p=a^{2}+b^{2}$$ and $$a^{2}+b^{2}$$ divides $$a^{3}+b^{3}-4$$.

2.Find all natural numbers $$n$$ and $$k$$ such that $$2^{n}+3=11^{k}$$.

Note by Souryajit Roy
1 year, 9 months ago

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Hey @Souryajit Roy , I got the answer for problem 2. The only solution is $$(3,1)$$. I will post the solution soon. It's very easy. · 1 year, 9 months ago

Sorry, I lost the paper on which I wrote the solution. And I forgot the way I proved it as it is too long. Sorry :( · 1 year, 7 months ago

When you will give the solution ? It has been a month -_- · 1 year, 7 months ago

Ohhh Sorry!! I forgot about this. I will provide you today. · 1 year, 7 months ago

Finally I solved it...no longer in need of a solution · 1 year, 7 months ago

Can you post the solution here? Plss · 1 year, 7 months ago

@Souryajit Roy If you can't, no one can ;) · 1 year, 9 months ago