difference = 2⁸⁰ − 2⁶⁴ ≈ 2⁸⁰ (since 2⁶⁰ is negligible ratio: 2⁸⁰ / 2⁶⁴ = 2¹⁶ = 65536) → but question asks "how many more", not ratio. - RoadRUNNER Motorcycle Touring & Travel Magazine