Yes. One of the reasons are that if you Google it, they say it's a composite #. Second, a prime number has 2 factors: 1 and itself. But 81 has 5 factors:1, 3, 9, 27, and 81.81 is a composite number 3 * 3 * 3 * 3 = 81
1 times 81 3 times 27 9 times 9
81
The answer is 1,3,9,27,81. 81*1=81 3*27=81 9*9=81 27*3=81 81*1=81
composite composite
81 is a composite number.
81 is not prime it's 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
Both 81 and 313968 are composite numbers.
It is composite.
81 is a composite number
Composite
81 is not prime, it is composite.
81 is a composite number because it has more than two factors.
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.
It has more than two distinct factors; they are 1, 3, 9, 27, 81
81 is a composite number because its factors are more than 2