Prove that for any positive integer n. prove that n3-n is divisible by 6
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For any Positive integer n, prove that n3−n divisible by 6. The condition for any number to be divisible by 6 is that the number must be individually divisible by 3 and 2. ... n=3p or n=3p+1 or n=3p+2, where p is some integer. If n=3p, then the number is divisible by 3.
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