MCQ
A number which is a factor of every number is ____.
  • A
    $0$
  • $1$
  • C
    $2$
  • D
    $5$

Answer

Correct option: B.
$1$

$1$ is the smallest factor of a multiple and the greatest factor of a multiple is the multiple it self. So, $1$ is a
factor of every multiple.

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