Question

find HCF of 42 and 12 by prime factorisation​

Answer 1

Step-by-step explanation:

42=2×3×7

12=2×2×3

HCF=2×3=6

Answer 2

Answer:

find the prime factorization of 12. 12 = 2 × 2 × 3.

Find the prime factorization of 42. 42 = 2 × 3 × 7.

To find the HCF, multiply all the prime factors common to both numbers: Therefore, HCF = 2 × 3.

HCF = 6.