# generalization of the Prime number theorem [duplicate]

from the prime number theorem is it possible to have

$$\sum_{p \le x}\: x^{m} = \frac{ \text{Li}\: (x^{m+1})}{m+1}$$ ?

here 'Li' is the logarithmic integral $\int_{2}^{\infty} \frac{dt}{logt}$

valid for m > -1 in the case m=0 we recover the usual prime number theorem.

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## marked as duplicate by Eric Naslund, anon, J. M. is back., Chandrasekhar, IlyaOct 15 '11 at 11:32

I assume you meant $\sum_{p\leq x} p^m$ since $\sum_{p\leq x} x^m=x^m \pi(x)$. In this case when $\text{Re}(s)>-1$ we have $$\sum_{p\leq x}p^{s}=\text{li}\left(x^{1+s}\right)+O\left(\frac{x^{1+s}}{1+s}e^{-c\sqrt{\log x}}\right)$$ where the error is uniform over $s$. This follows from partial summation and the prime number theorem, please see this answer.
Edit: As mentioned in the comments, the real part of $s$ should be greater the $-1$ since the sum converges when it is less then $-1$, and acts different when it equals $1$. (Specfically we need that $1+s>0$ so the $\text{li}(x^{1+s})$ term contributes.
This is true if the real part of $s$ exceeds $-1$, as in the original question; otherwise the sum converges except at $s=-1$ itself, so the main term would change. –  Greg Martin Oct 15 '11 at 9:10