Question

28,42
hcf using prime factorisation
method​

Answer 1

Answer:

14

Step-by-step explanation:

Prime factorization of 28 and 42 is (2 × 2 × 7) and (2 × 3 × 7) respectively. As visible, 28 and 42 have common prime factors. Hence, the GCF of 28 and 42 is 2 × 7 = 14.

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