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It is divisible by 1,3, and 9. Prime numbers can only have 2 factors.

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Q: Why is nine not a prime number?
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Related questions

Why is thirty-nine a prime number?

Thirty-nine is NOT a prime number. It is composite.


Is nine an prime number?

9 is not a prime number


Is the number nine prime number with sixteen number?

Neither nine nor sixteen are prime numbers. They are relatively prime to each other.


Is 9 a prime number when it is in the ones place?

nine is not a prime number


Is 579 is prime triplet?

No. Nine is not a prime number.


Are nine and three a prime factor?

9 is a composite number but 3 is a prime number


Why is 9 not a prime factor of 4500?

Nine cannot be a prime factor of any number because it is not a prime number.


What is the prime factorization for eighty-nine?

Since 89 is a prime number, the prime factorization of the number is simply 89.


Is twenty nine a prime number?

Yes it is.


Is fifty-nine a prime number?

Yes.


Why is forty-nine not a prime?

Forty-nine is not a prime number because it is also divisible by seven. Prime numbers are only divisible by one and themselves.


How do you get nine divided into prime numbers?

By dividing it by a number that will make the outcome prime.