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I<3

that's a number, i guess. You are wrong though...

Look at it sideways
... Sure 4 is the traditional answer

Of course since there is no = sign it is not an equation so it's simply 2+2

dude even I wasn't thinking of that XD. Epic Answer mate :D

It's never a bad idea to exercise the mind or challenge what we believe to be true. Only by continually asking questions and testing solutions can we advance our knowledge!