A number<span> that cannot be expressed as a ratio between two integers and is not an imaginary </span>number<span>.
If written in decimal notation, an </span>irrational number<span> would have an infinite </span>number<span> of digits to the right of the decimal point, without repetition.
For example, the square root of 2 (√2) is an </span>irrational number<span>.
Hence, out of all the options above, </span>√6 is an irrational number.
