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2017 JBMO Shortlist
NT2
fin n so that n^2 / (n - 1)!.
fin n so that n^2 / (n - 1)!.
Source: JBMO Shortlist 2017 NT2
July 25, 2018
number theory
Divisibility
factorial
Problem Statement
Determine all positive integers n such that
n
2
/
(
n
ā
1
)
!
n^2/ (n - 1)!
n
2
/
(
n
ā
1
)!
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