MathDB

A5

Part of 1972 Putnam

Problems(1)

n| 2^{n} -1 is not possible for n>1

Source: 4th QEDMO 2007 p4

11/9/2020
Prove that there is no positive integer n>1n>1 such that n∣2n−1.n\mid2^{n} -1.
number theorydivisible