Question

Find the highest common factor of
72 and 135

Answer 1

9

Explanation:

9 is the highest common factor of 72 and 135

Answer 2

Answer:9

Explanation:

Find the prime factorization of 72

72 = 2 × 2 × 2 × 3 × 3

Find the prime factorization of 135

135 = 3 × 3 × 3 × 5

To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 3 × 3

GCF = 9