Question

find the prime factorization of the number 45. order the factors from least to greatest. remember, 1 is not a prime number. ? × × enter the number that belongs in the green box.

Explanation:

Step1: Divide by smallest prime

Divide 45 by 3. $45\div3 = 15$.

Step2: Divide the result

Divide 15 by 3. $15\div3=5$.

Step3: Recognize prime number

5 is a prime number.

Answer:

3