Question

What is the HCF of 1440 and 576

Answer 1

Find the prime factorization of 576

576 = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3

Find the prime factorization of 1440

1440 = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5

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

Therefore, GCF = 2 × 2 × 2 × 2 × 2 × 3 × 3

GCF = 288

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Answer 2

gretest common factor is 288