Question Number 122896 by fajri last updated on 20/Nov/20
$${Prove}\:: \\ $$$$\left({n},\mathrm{7}\right)\:=\:\mathrm{1}\:\rightarrow\:\mathrm{7}\mid\left({n}^{\mathrm{6}} \:−\:\mathrm{1}\right) \\ $$
Answered by Snail last updated on 20/Nov/20
$${Use}\:\:{Euelers}\:{theorem}\:{or}\:{fermats}\:{theorem}\:{to}\:{do}\:{so} \\ $$
Commented by fajri last updated on 20/Nov/20
$${how}\:{to}\:{prove}\:{with}\:{both}\:{theorem}\:{Sir},\:{can}\:{you}\:{help}\:{me}\:{please} \\ $$