What is Prime Factorization in Math?

In math, prime factorization is when we find all the prime factors of a number. For example, to find the prime factors of 18, we find a number that divides into 18 like 6. We then say that 18 = 6×3= 2x3x3. Since 2x3x3 are all the prime factors of 18, we have completely factorized the number 18.