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81 is a composite number as it has factors other than 1 and itself (3, 27 and 9).

Q: Is 81 a prime composite or neither number?

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Composite

81 is not prime it's a composite number

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 81 is composite, 111 is prime.

81 is a Composite Number

81 is an odd composite number.

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Composite

81 is not prime it's a composite number

81 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.

A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 81 is composite, 111 is prime.

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

81 is an odd composite number.

It is a composite number.

81 is a Composite Number

81 is a composite number because it has more than two factors.

81 is a composite number and it is also a square number

81 is a composite number because its factors are more than 2

81 is a composite number. Composite numbers are any number that has more than two factors(one and itself). Therefore, since 3,9, and 27 are factors of 81 that makes it a composite number.