What is the HCF of 12, 18 and 42?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 6.
Given that,
The HCF of 12, 18 and 42
The prime factorization
⇒ 12 = 2 × 2 × 3
⇒ 18 = 2 × 3 × 3
⇒ 42 = 2 × 3 × 7
Hence, the HCF = 2 × 3 = 6