I win: 0x7FF0000000000000 Proof: There is no larger number than +∞. Is +∞ a number? Yes, it is. It is not a real number, it is not a representative number, it'

I win: 0x7FF0000000000000 Proof: There is no larger number than +∞. Is +∞ a number? Yes, it is. It is not a real number, it is not a representative number, it's a hyperreal number. (Kreisler 1986)