- #1
transmini
- 81
- 1
Homework Statement
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Prove n(n+1)(n+2) is divisible by 6 for all integers n. (WITHOUT using induction, we have yet to get to induction so I figure it would be wise to do this without it.)
Homework Equations
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The section we were given this under primarily talks about the quotient remainder theorem (n = dq+r) though I couldn't figure out how to apply this either.
The Attempt at a Solution
Honestly not sure where to even begin with this one. Nothing even slightly similar has been covered as to give a slight intuition on how to begin this.
I've managed to prove that it's divisible by 2 for all even and odd integers by using n = 2k and n = 2k+1 respectively. That still leaves proving it is divisible by 3 for even and odds though, which is where I get stuck doing that method.