Use the factor tree to find the prime factorization of 54. A factor tree of 54. 54 branches to 9 and 6. 9 branches to 3 and 3. 6 branches to 2 and 3. What is the prime factorization of 54? Check all that apply. 9 × 6 2 × 3 2 × 3 × 3 × 3 23 × 3 × 3 2 × 33