# Is 23 a rational number?

##### 1 Answer

Yes.

A rational number can be written as a fraction.

#### Explanation:

A Rational number is a Real number which can be written as a fraction with the numerator and denominator both being integers. (whole numbers)

Rational numbers include:

all the common fractions,

all the terminating decimals (like 3.875)

all the recurring decimals (like 4.121212....)

all the integers (....-3, -2, -1, 0, 1, 2, 3 ....)

all the counting (whole) numbers (0, 1, 2, 3 ....)

all the natural numbers (1, primes and composites) (1, 2, 3, 4, .....)

Which real numbers are not rational? -the irrational numbers:

Square roots of numbers which are not perfect squares

Cube roots of numbers which are not perfect cubes