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Q: What is only prime number that is a factor of 18?

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

2 and 3

18 = 2 * 3 * 3

Yes, they are. 5 is the only prime factor of 25 and 5 is not a factor of 18, so they have no prime factors in common, which is what relatively prime means.

No, 18 is not prime. A prime number can only be divided by 1 and itself.

what is the exponment of 14

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.

No, 2 is the only even number that is prime.

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

18 and 81 share only one prime factor: 3

Lots of numbers are. To be relatively prime, they would have to have only the number 1 as a common factor. So any number that has any of 2, 3, 6, 9 or 18 as factors are not relative prime to 18. So numbers such as 5, 7, 11, 13 and 17 are relatively prime with 18.

18 is a factor (composite).

because it is not a prime number

1 is a factor of 18; neither 1 nor 18 is prime.

Answer: 1 Since 5 is a prime number, the only possible common factors are 1 and 5. Because 18 is not divisible by 5, the only common factor, and thus the greatest common factor, is 1.

The prime factorization of 18 is 2 x 3 x 3, so 2 and 3 are both prime factors of 18.

The GCF of 9, 15, and 18 is 3. The prime factorization of 9 is 3*3. The prime factorization of 15 is 3*5 The prime factorization of 18 is 2*3*3 So the greatest common factor is 3.

Since 5 is prime, and not a factor of 18, the only positive integer common factor of 5 and 18 is 1.

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

The 3 number that make the prime factorization of 18 are 2 x 3 x 3.

Since 17 is a prime number, the greatest common factor of 17, 18, and 20 is 1.

The number 3 is prime and has only one factor. 3 = 31 A better example of exponents in factoring would be a composite number such as 18: 18 = 2 x 3 x 3 18 = 21 x 32

18 has two prime factors: 2 and 3.

No Because 6x3=18

The only common factor of 13 and 18 is 1 because they are co-prime.