What is prime factorization of a number or expression

The video tutorial explains prime factorization, which involves rewriting a number or expression as a product of its prime factors. It uses the number 12 as an example, showing different ways to factor it and ultimately breaking it down into its prime factors using a factor tree. The prime factorization of 12 is demonstrated as 2 times 2 times 3.

What new insight or understanding did you gain from this video?