Question

Find the HCF of (1)30 and 42 (2) 12,45,75

Answer 1

※$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$※

1. Factors of 30 $\large{→}$ 1, 2, 3, 5, 6, 10, 15 and 30.

Factors of 42 $\large{→}$ 1, 2, 3, 6, 7, 14, 21 and 42.

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So, HCF of 30 and 42 are 1, 2, 3 and 6.