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9
J 9
J 9
Source:
May 25, 2007
Divisor Functions
Problem Statement
Show that the set of all numbers
ϕ
(
n
+
1
)
ϕ
(
n
)
\frac{\phi(n+1)}{\phi(n)}
ϕ
(
n
)
ϕ
(
n
+
1
)
is dense in the set of all positive reals.
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