Is 81 a Composite Number?

Yup. Eighty one is composite. I'm serious. Totally composite. I bet I could make more money if I just sold homework answers... Get out of here kid, you bother me.
What are the factors of 81?

Maybe you'd like to know what is the absolute value of -81?
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Random atomic facts:darmstadtium roentgenium copernicium ununtrium flerovium ununpentium livermorium ununseptium ununoctium lanthanum