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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
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Is 81 a composite?
Yes, I think so.
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wowo is it a composite number dang how did I not see that...
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No, it is not a composite number, it's a prime number.
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Composite A prime number is a number that has only two factors (itself and one) A composite number is a number that has more than two factors.
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