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Subjects>Math>Basic Math

Why is 81 a composite?

Updated: 4/28/2022

Wiki User

∙ 7y ago

Best Answer

It has more than two distinct factors; they are 1, 3, 9, 27, 81

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∙ 7y ago

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Wiki User

∙ 7y ago

A composite number is a number that has more factors than just 1 and itself. 81 has 5 factors, 1, 3, 9, 27, 81, therefore, 81 is a composite number.

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Wiki User

∙ 7y ago

81 is a composite number.

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Wiki User

∙ 7y ago

It is divisible by 3.

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∙ 3y ago

81, 27, 9, 3, ...

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Q: Why is 81 a composite?

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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

Is 81 prime or a composite?

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

Is 81 prime or composite numder?

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

Is 81 composite?

Yes

Which of these numbers are composite 53 81 41 47 31?

If you mean: 53 81 41 47 and 31 then 81 is a composite number while all the rest are prime numbers

Related questions

What is the composite numbers for 81?

81 is a composite number.

What is 81 is that a prime?

81 is not prime it's a composite number

Is 81 prime composite or neather?

It is composite.

Which is not a composite number 313968 or 81?

Both 81 and 313968 are composite numbers.

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

Is 81prime or composite?

81 is a composite number

Is 81 neither prime or composite?

Composite

Why is 81 prime?

81 is not prime, it is composite.

Is 81 prime or a composite?

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

81 prime or composite?

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.

Is 81 prime or composite numder?

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

Is 81 composite?

Yes

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