﻿[Script Info] Title: [Events] Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text Dialogue: 0,0:00:00.00,0:00:03.00,Default,,0000,0000,0000,,So the answer is we only need about 115 guesses. Dialogue: 0,0:00:03.00,0:00:07.00,Default,,0000,0000,0000,,So that shouldn't take too long, as long as there's a quick way to tell if a number is prime. Dialogue: 0,0:00:07.00,0:00:13.00,Default,,0000,0000,0000,,And to compute that result, we computed the log of 10 to the 100. Dialogue: 0,0:00:13.00,0:00:15.00,Default,,0000,0000,0000,,You could do that in Python by using the math library Dialogue: 0,0:00:15.00,0:00:21.00,Default,,0000,0000,0000,,and computing the log of 10 to the power of 100 where the base of the log is math.e-- Dialogue: 0,0:00:21.00,0:00:23.00,Default,,0000,0000,0000,,that's the constant for the natural log. Dialogue: 0,0:00:23.00,0:00:26.00,Default,,0000,0000,0000,,That would give you a result about 230. Dialogue: 0,0:00:26.00,0:00:30.00,Default,,0000,0000,0000,,We'll divide that by 2 to get the expected number of guesses we need.