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Q: Is 18 a prime number or a composite number and why?

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

18 is composite.

It is a composite number.

composite

COMPOSITE

composite

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.

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

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.

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.

18 = 2 * 3 * 3

composite

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

It is a composite number.

It is not a prime number, it is a composite number.

It is not a prime number, it is a composite number.

5 and 41 are prime numbers but 18 is a composite number

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

It is a composite.