MathDB

NT2

Part of 2017 JBMO Shortlist

Problems(1)

fin n so that n^2 / (n - 1)!.

Source: JBMO Shortlist 2017 NT2

7/25/2018
Determine all positive integers n such that n2/(nāˆ’1)!n^2/ (n - 1)!
number theoryDivisibilityfactorial