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Prime Factors

The number 1 has no prime factorization — it isn't a product of smaller primes.

1 has no prime factorization of its own — 1 isn't prime or composite, it's a unit.

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In number theory, the prime factors of a positive integer are the prime numbers that divide that integer exactly. The prime factorization of a positive integer is a list of the integer's prime factors, together with their multiplicities; the process of determining these factors is called integer factorization.

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