MCQ
The difference between an integer and its cube is divisible by
  • A
    $4$
  • $6$
  • C
    $9$
  • D
    None of these

Answer

Correct option: B.
$6$
b
(b) It can easily proved by putting $n = 2,\;3,\;4........$.

The difference between an integar and its cube is divisible by $6$.

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