Question

Which of the following statements is not true?

Options

• The HCF of two distinct prime numbers is 1

• The HCF of two co-prime numbers is 1

• The HCF of two consecutive even numbers is 2

• The HCF of an even and an odd number is even

Answer 1

The HCF of an even and an odd number is even.

Explanation:

We know that, HCF of an even and an odd number is always an odd number, e.g. HCF (8, 7) = 1 (odd)