17 x 17 = 289
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Only composite numbershave prime factorizations. Prime factorizations must consist of only prime numbers.
No, prime factorizations consist entirely of prime numbers.
The prime factors of 42 are 2, 3 and 7.
None. 103 is a prime number.103 is already prime. No factorization.
a and b have no common prime factors. Their LCM is their product.