3 is a Prime number. It is only evenly divisible by itself and one.
The factors of 9 are: 1, 3, and 9.
The only prime factor of 9 is: 3.
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3, 4, and 7 are the common factors of 9 12 and 21.
The factors of 9 are: 1, 3, and 9.The only prime factor of 9 is: 3.13 is a prime number. It is only evenly divisible by itself and one.
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. Of these, 2 and 3 are prime.
The factors of 12 are: 1, 2, 3, 4, 6, and 12.The prime factors of 12 are: 2 and 3.The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.
The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, and 54.The prime factors of 54 are: 2 and 3.The factors of 66 are: 1, 2, 3, 6, 11, 22, 33, and 66.The prime factors of 66 are: 2, 3, and 11.