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A Prime number is a number that can only be divided by 1 and itself. While 5 can only be divided by 1 and 5, 9 can be divided by 1, 9 and 3. So 9 is not a prime number, 5 is.

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Q: Is 5 or 9 prime

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5 is a prime number, but not 9, because you can do 3*3=9

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5

9 is not a prime number as it is divisible by 3

The prime numbers from 1 to 9 are 2, 3, 5 and 7.

Five is the prime number.

The product of two prime numbers can never be another prime number, the numbers that you multiplied are factors of the product. (example, 9 times 5 is 45, 9 and 5 go into 45)

Reason 2 X 5 X 9 is Not Prime Factorization of 90The reason 2 X 5 X 9 is not the prime factorization of 90 is that 9 is not a prime number. 3 X 3 is 9, so the prime factorization of 90 is 2 X 3 X 3 X 5.

2, 5 and 7

9 can have 3 go into it, though 5 has only 1 and 5 so the answer is yes and no

Prime Factorization of 90The prime factorization of 90 is not 2 X 5 X 9 because 9 is not a prime number. It can be factored into 3 X 3, which are prime numbers, so the prime factorization of 90 is2 X 3 X 3 X 5.

The prime numbers between 1 and 9 are 2, 3, 5, and 7.

Prime 9 - 2009 was released on: USA: 5 January 2009