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Q: Which is a prime factor of the composite number 18?

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

18 = 2 * 3 * 3

18 is a factor (composite).

The GCF of a prime number and a composite number is 1 if the former is not a factor of the latter. 73 is a prime number and 18 is a composite number and 73 is not a factor of 18 because 18 is not divisible by 73. So, GCF(73, 18) = 1.

The prime factorization of 18 is 3 x 3 x 2.

18 is a composite number because it has at least one positive factor other than one or itself.

2 is a prime number. 18 is a composite number.

18 is composite.

It is a composite number.

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COMPOSITE

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composite The number 18 is a composite number. It is a composite number because composite numbers are whole numbers that have three or more factors.

To find the prime and composite factors of a number, list all the factor pairs of the number. Then, go through them and list the primes and composites. 33 1 x 33 3 x 11 The prime factors are 3 and 11. The composite factor is 33. 1 is neither prime nor composite. 18 1 x 18 2 x 9 3 x 6 The prime factors are 2 and 3. The composite factors are 6, 9, and 18.

17 is a prime number - the next composite number after 17 is 18.

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 18 is composite.

18 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

The factors of 18 are: 1, 2, 3, 6, 9, and 18.Since there are other factors in addition to '1' and the number itself,the number is composite.18 is a composite number because it has more than 2 factors18 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.18 is not prime; it is composite. 18 = 2 * 3 * 3

18 is composite.

No. 9 is a composite number (3 x 3). But it is a factor of 18. Factors of 18 are 1, 2, 3, 6, 9, 18. 18 = 2 x 3 x 3

A twin prime is a prime number that differs from another prime number by two. 18 is not a prime; it is a composite number. All even numbers are composites and 18 is an even number.

18 is a composite number because a prime number can only be multiplied by 1 and itself. 18 can be multiplied by 9 and 2 also.

All even numbers greater than 2 are composite.

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factors of 18: 1, 2, 3, 6, 9 and 18 prime factors of 18: 2, 3 composite factors of 18: 6, 9, 18