# $$(p-1)^\text{th}$$ Harmonic Number for Odd Prime $$p$$

Let $$p$$ be an odd prime and $\large \dfrac{A_p}{B_p}=1+\dfrac{1}{2}+\dfrac{1}{3}+\cdots +\dfrac{1}{p-1},$ where $$A_p$$ and $$B_p$$ are coprime positive integers.

Enter the sum of all possible odd primes $$p\leq50$$ such that $$A_p \equiv 0 \pmod{p}$$.

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