Question

Which of the following statements is false? A rational number cannot be an irrational number. An irrational number is always a real number. An integer will always be a rational number. A natural number cannot be an integer.

Answer 1

An irrational number is always a real number - false

A rational number cannot be an irrational number. - true, it is rational by definition

An integer will always be a rational number - true, integers are rational

A natural number cannot be an integer. - it can, for example 42