The prime factorization of 18 is 2 x 3 x 3, so 2 and 3 are both prime factors of 18.
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18 = 2 * 3 * 3
A factor can or cannot be a prime number Ex: 2 is the factor of all other even numbers its a prime number but 9 is a factor of 18 and its not a prime number A prime is a factor but a factor being a prime number varies
No, 9 is not a prime number because it has factors other than 1 and itself. In this case, 9 is a factor of 18 because 9 multiplied by 2 equals 18. Prime numbers are numbers that have exactly two factors, 1 and the number itself, while factors are numbers that can be multiplied together to get the original number.
NO!!! If you add the adigtis 2259 = 2 + 2 + 5 + 9 = 18 + 1 + 8 = 9 This means that the number will divide, has a factor of '9'. 2259/9= 251 So 2259 is a composite number, not a prime number.
Composite numbers.Example: 17- factors of 17...1 and 17- This is a prime number.Example: 18- factors of 18...1,2,3,6,9,18- This is a composite number.