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Date: 27-9-2020
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If is a prime , then the numerator of the harmonic number
(1) |
is divisible by and the numerator of the generalized harmonic number
(2) |
is divisible by . The numerators of are sometimes known as Wolstenholme numbers.
These imply that if is prime, then
(3) |
REFERENCES:
Guy, R. K. Unsolved Problems in Number Theory, 2nd ed. New York: Springer-Verlag, p. 85, 1994.
Ribenboim, P. The New Book of Prime Number Records. New York: Springer-Verlag, p. 21, 1989.
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