MCQ
$...........$ is neither prime nor composite.
  • A
    $4$
  • B
    $3$
  • $1$
  • D
    $2$

Answer

Correct option: C.
$1$
$1$ is neither prime nor composite.
A prime is a natural number greater than $1$ that has no positive divisors other than $1$ and itself
e.g. $5$ is prime because $1$ and $5$ are its only positive integers factors but $6$ is composite because it has divisors $2$ and $3$ in addition to $1$ and $6$.

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