For any positive integer n, prove that `n^3-n` is divisible by 6

For any positive integer n , prove that n^3-n divisible by 6.

For any positive integer n, prove that n^(3)-n divisible by 6.

For every positive integer n, prove that 7^n-3^n is divisible by 4.

For every positive integer n, prove that 7^n-3^n is divisible by 4.

For every positive integer n,prove that 7^n-3^n is divisible by 4 using principle of mathematical induction.

For every positive integer n, prove that 7^n - 3^n is divisible by 4.

If n is a positive integer, prove that 3^(3n)-26n-1 is divisible by 676.

It n is a positive integer,prove that 3^(3n)-26n-1 is divisible by 676

For every positive integer n,prove that 7^(n)-3^(n) is divisible by 4.

For every positive integer n, prove that 7^(n) – 3^(n) is divisible by 4.