81 is a Composite Number
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If you mean 81 then as a product of its prime factors 3*3*3*3 = 81 or in exponents 3^4 = 81
81a^2+36a+4 a = -2/9
Yes. The square root of 81 is 9, which is a rational number.
Who is the prime minister of Canada?what is a prime number?I am prime in that position.this is the prime mover.how is that prime?
It is a prime.