Is 81 an Irrational Number?
The number 81 is an irrational number if 81 canNOT be expressed as a ratio, as in irRATIOnal.
A quotient is the result you get when you divide one number by another number. For 81 to be an irrational number, the quotient of two integers canNOT equal 81.
In other words, for 81 to be an irrational number, 81 canNOT be expressed as a ratio where both the numerator and denominator are integers (whole numbers).
The number 81 can be expressed as 81/1 where 81 is the numerator and 1 is denominator.
Thus, the answer to the question "Is 81 an irrational number?" is NO.