Find the prime factorization of each composite number 45

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

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