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The number of...

Question

The number of divisors of $18$ are

6

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8

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4

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9

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Solution

The correct option is B $6$
We have, $18 = 2^{1} \times 3^{2}$

Number of divisors $= (p + 1) (q + 1) \dots$ (where p and q are powers of multiples.)

Number of divisors of $18 = (1 + 1) (2 + 1) = 6$

Option A is correct.

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