Q: Is 9 a factor prime or composite?

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9 is a composite number. Prime numbers cannot be divided by anything but 1 and the number itself. In another form, prime numbers have two factors - 1 and the number itself. The factors of 9 are: 3 (3x3), 9 (9x1), 1 (1x9) Therefore, since there is three as a factor besides 1 and the number itself, 9 is not prime. It's composite.9 Is an composite number. :)

189 is a composite. Some quick tests, which can be done in your head: Check if the number is even (2 is a factor). Ones place will have 0,2,4,6, or 8 if even. Multiple of 5 (5 is a factor): Ones digit is 0 or 5. Multiple of 3 or 9: Add up the digits in the number; if this sum is 3 or a multiple of 3, then the original number is a multiple of 3 (3 is a factor). Additionally, if this sum equals 9 or a multiple of 9, then 9 is a factor. This is the case for 189 : 1+8+9=18, which is a multiple of 9. Since we found a factor (in addition to 1 & the original number) then the number is composite and not prime.

No. 34 is composite and so it cannot be a prime factor.

A prime number is not divisible by any numbers except 1 and itself. A composite number is divisible by other numbers. 9 is divisible by 3, so it is a composite number.

All numbers have factors. Some factors are prime numbers, some are composite numbers. A factor that is a composite number is a composite factor.

Related questions

A composite factor is a factor that is a composite number, as opposed to a prime factor which is a factor that is a prime number.

Is 19 a composite or prime factor

A composite factor is a factor that is a composite number, as opposed to a prime factor which is a factor that is a prime number.

9 is a composite number but 3 is a prime number

Composite

Since 160 is a composite number, it would be a composite factor.

39 is prime, 9 is composite.

It is a prime.

9 is a composite number. Prime numbers cannot be divided by anything but 1 and the number itself. In another form, prime numbers have two factors - 1 and the number itself. The factors of 9 are: 3 (3x3), 9 (9x1), 1 (1x9) Therefore, since there is three as a factor besides 1 and the number itself, 9 is not prime. It's composite.9 Is an composite number. :)

3426 is clearly composite it as it has a factor of 2 hence, it is not prime as it does not have itself and 1 as a factor

189 is a composite. Some quick tests, which can be done in your head: Check if the number is even (2 is a factor). Ones place will have 0,2,4,6, or 8 if even. Multiple of 5 (5 is a factor): Ones digit is 0 or 5. Multiple of 3 or 9: Add up the digits in the number; if this sum is 3 or a multiple of 3, then the original number is a multiple of 3 (3 is a factor). Additionally, if this sum equals 9 or a multiple of 9, then 9 is a factor. This is the case for 189 : 1+8+9=18, which is a multiple of 9. Since we found a factor (in addition to 1 & the original number) then the number is composite and not prime.

12 is a composite number, not a prime factor.