$\"\"$

The number is $\"\"$ .

$\"\"$ (Divide: $\"\"$ )

The number is $\"\"$ .

The number $\"\"$ is real number $\"\"$ .

The number $\"\"$ is a rational number $\"\"$ . ( $\"\"$ ) \ \

The number $\"\"$ belongs to $\"\"$ and $\"\"$ .

$\"\"$

The number $\"\"$ belongs to $\"\"$ and $\"\"$ .