991 as a product of prime factors

What is 991 as a Product of Prime Factors?
First, note that in the sentence above, "product" is the result you get when you multiply numbers together to get 991.
Furthermore, "prime factors" are specifically the prime numbers that you multiply together to get 991.
All composite numbers can be written as a product of prime factors, however 991 is itself a prime number and not a composite number.
1 x 991 are the only two numbers that multiply to 991 and 1 is not a prime number nor prime factor.
Therefore, 991 as a Product of Prime Factors is not possible.
992 as a Product of Prime Factors
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