Is 81 a prime or composite number?

Question

BNar7191 · Answer

81 is a composite number. It is a positive number that is divisible by some other number other than 1 and itself. 81 can be divided by 9 (9 x 9 = 81).

cookies1kay · Answer

81 one is a composite even numbers are prime numbers

BNar7191 · Answer

81 is a composite number because it has divisors other than 1 and itself. It can be factored as 9 x 9 or 3 x 27. Thus, it is not a prime number. 
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Is 81 a prime or composite number?

Answer (3)

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