Bridge, Algorithms, Math etc.
bridge hands and math and computer science and programming and puzzles and etc and etc.
Friday, March 4, 2016
Harmonic numbers are not integers
A classic:
Show that
H
n
=
n
∑
k
=
1
1
k
is never an integer, for
n
>
1
.
i.e.
1
+
1
2
+
⋯
+
1
n
is never an integer for
n
>
1
.
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