Numerator of p-1th Harmonic Number is Divisible by p^2 for Prime Greater than 3
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Let $p$ be a prime number such that $p > 3$.
- 1979: G.H. Hardy and E.M. Wright: An Introduction to the Theory of Numbers (5th ed.): $7.8$: A theorem of Wolstenholme: Theorem $116$
- 1997: Donald E. Knuth: The Art of Computer Programming: Volume 1: Fundamental Algorithms (3rd ed.) ... (previous) ... (next): $\S 1.2.7$: Harmonic Numbers: Exercise $17$ (Solution)