Find integer $n$ for which $n$ divide $2ⁿ+1$

Question

Find integer $n$ for which $n$ divide $2^n +1$.

score 0 · Answer 1 · answered Oct 06 '20 at 12:38

0

Since $n$ is any integer, then $n=1$ will do.

answered Oct 06 '20 at 12:38

Alessio K

$0$ divides $0$ as well (under most reasonable definitions), so if you're going to include these edge cases $n=0$ ought to be mentioned as well. – JMoravitz Oct 06 '20 at 12:43

1 Answers1