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Regarding the question as being, What are the prime factors of 18?

A Prime number is a number that only has 1 and itself as factors.

The number "1" itself is not regarded as a prime number.

The prime factors can be obtained by successive division.

18 ÷ 2 = 9

9 ÷ 3 = 3

3 ÷ 3 = 1

The prime factors of 18 are 2,3 and 3. This can be written as 2 and 3².

This can be checked as 2 x 3 x 3 = 18.

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Q: What is the prime of 18?
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What two composite numbers have the prime who's prime factors are 18?

18 is not a prime number so no number can have 18 as a prime factor.


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