Find-maximum-of-n-such-that-n-2-n-1-is-factor-of-19n-2019-1-

Question Number 82514 by naka3546 last updated on 22/Feb/20

F i n d m a x i m u m o f n s u c h t h a t

n^{2} + n + 1 i s f a c t o r o f 19 n^{2019} + 1 .

Commented by naka3546 last updated on 22/Feb/20

n \in N