Question

Find the prime factorization of each composite number 45

Answer 1

Prime factorization means to factor the composite number into only prime numbers.
So, 45=9x5=3x3x5...which are all prime.
So your answer is 3, 3, 5

Answer 2

Answer:

The prime factorization of  45  is   45 = 5 x  3 x  3  OR  5 ⋅ 3 ²

Step-by-step explanation:

We could also write this as:

5 ⋅ 3 ²

From the multiplication table, we know that  

45 = 5 ⋅x9  where 5  is prime, but  9  is not

 The prime factorization of  9  is  3 ⋅x3 ,

so the prime factorization of 45  is   45 = 5x 3x 3

OR

5 ⋅ 3 ²