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81 is; Natural number, Perfect-square number, Perfect 4th root number, Perfect totient number, Odd Number, Composite Number, etc.
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∙ 15y ago
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What is 81 is that a prime?
81 is not prime it's a composite number
Is 81 a least prime number?
81 is not a prime number. 81 = 3 * 3 * 3 * 3
Is -81 an irrational number?
No, -81 is not an irrational number because it can be represented in the form x/y = -81
Is 3 or 81 or 120 or 27 is a square number?
81 is a square number
What is the prime number of 81 is it even or odd?
81 is an odd composite number.
What kind of number is 81?
It is a square number
Is the square root of of 81 over negative three irrational?
No. The square root of 81/(-3) is rational. The square root of [81/(-3)] is imaginary (a kind of complex number).
Is 81 a even number?
No, 81 is an odd number.
What is the square number of 81?
The square number of 81 is 9. 9 x 9 = 81
What is 81 is that a prime?
81 is not prime it's a composite number
Is 81 a least prime number?
81 is not a prime number. 81 = 3 * 3 * 3 * 3
Is -81 an irrational number?
No, -81 is not an irrational number because it can be represented in the form x/y = -81
Is 81 a prime number or a composite number?
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
What number is 66.6 percent of 81?
66.6% of 81= 66.6% * 81= 0.666 * 81= 53.946
What is number 81 on the periodic table?
Number 81 on the periodic table is Thallium.
Is 3 or 81 or 120 or 27 is a square number?
81 is a square number
What is the prime number of 81 is it even or odd?
81 is an odd composite number.
