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Multiples

Which of the ...

Question

Which of the following is a composite number?
(a) 23
(b) 29
(c) 32
(d) none of these

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Solution

(c) 32

(a) 23 is not a composite number as it cannot be broken into factors.
(b) 29 is not a composite number as it cannot be broken into factors.
(c) 32 is a composite number as it can be broken into factors, which are 2 × 2 × 2 × 2 × 2.

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