81 is not prime it's a composite number
81 is not a prime number. 81 = 3 * 3 * 3 * 3
No, -81 is not an irrational number because it can be represented in the form x/y = -81
81 is an odd composite number.
81 is a square number
It is a square number
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
No, 81 is an odd number.
The square number of 81 is 9. 9 x 9 = 81
81 is not prime it's a composite number
81 is not a prime number. 81 = 3 * 3 * 3 * 3
No, -81 is not an irrational number because it can be represented in the form x/y = -81
It is a composite number, you can get 81 by mulitpling 1*81, 3*27, and 9*9.compositeNo the number 81 is not prime it can be divided by nine.composite
66.6% of 81= 66.6% * 81= 0.666 * 81= 53.946
81 is an odd composite number.
81 is a square number
81 trans truck