**Is 19 a Rational Number?**

The number 19 is a rational number if 19 can be expressed as a ratio, as in RATIOnal.

A quotient is the result you get when you divide one number by another number. For 19 to be a rational number, the quotient of two integers must equal 19.

In other words, for 19 to be a rational number, 19 must be able to be expressed as a ratio where both the numerator and the denominator are integers (whole numbers).

The number 19 can be expressed as 19/1 where 19 is the numerator and 1 is the denominator.

Thus, the answer to the question "Is 19 a rational number?" is YES.