HCF of an even number and odd number is always even
HCF of an even number and odd number is always even. it is false statement because
6 is even and 9 is odd but HCF of 6 and 9 is 3.
so, HCF of an even number and odd number is always odd
The sum of an odd number and an even number is always even.
The product of an even number and an odd number is always odd.
HCF of an even number and an odd number is an even number.