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Prove-n-7-1-7-n-6-1-




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

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