Why does Dante use the number "3" mutiple times in "Dante's Inferno"?

The
number 3 is everywhere in 's Divine Comedy . For one thing, the poem itself
is structured according to the rhyme scheme terza rima, which uses stanzas of three lines that
employ interlocking rhymes (aba bcb cdc, etc.). Additionally, there are nine circles of Hell
(three multiplied by three), Satan has three faces, and three beasts (a lion, a leopard, and a
wolf) threaten Dante at the beginning of the Inferno. There are many more examples of three, but
the overall important thing to understand is that the number three...