The prime factors of 18, 2,2,2, 2,3,3, 2,3, 2,5, what is the prime number whose sum of it's factora equals 12 ?, 5, 7, 11, 13, the only even prime number is..., 3, 2, 5, 7, The smallest odd prime number is .., 3, 5, 2, 7, All the following are prime numbers Except, 5, 15, 13, 19.

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