0
6
3
Undefined
Answer is Wrong!
Answer is Right!
The correct answer is (a).
The highest common factor (HCF) of two numbers is the largest number that is a factor of both numbers. In other words, it is the largest number that can be divided evenly by both numbers.
0 is not a factor of any number, so the HCF of 0 and 6 is 0.
(b) is
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