how-can-demonstred-17-4n-1-3-9-2n-1-0-11-

Question Number 22896 by jazary last updated on 23/Oct/17

h o w c a n d e m o n s t r e d

17^{4 n + 1} + 3 \times 9^{2 n + 1} \equiv 0 [11]

Commented by Rasheed.Sindhi last updated on 24/Oct/17

For n = 1

17^{5} + 3 \times 9^{3} = 1422044

But 11 ∤ 1422044

Hence the given congruence is

generally false