Question

hcf of 120, 320 and 420​

Answer 1

Answer:

Find the prime factorization of 120

120 = 2 × 2 × 2 × 3 × 5

Find the prime factorization of 320

320 = 2 × 2 × 2 × 2 × 2 × 2 × 5

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

Therefore, GCF = 2 × 2 × 2 × 5

GCF = 40