Sheldon: 73, is the 21st prime number, its mirror 37 is the 12th and its mirror 21 is the product of multiplying, hang on to your hats, 7 and 3. Did I lie?
Leonard: We get it! 73 is the... Chuck Norris of numbers!
Sheldon: Chuck Norris wishes! In binary, 73 is a palindrome, 1001001, which backwards is 1001001, exactly the same. All Chuck Norris gets you backwards is Sirron Kcuhc!
LOUIS FARRAKHAN: Abraham Lincoln, the sixteenth president. Thomas Jefferson, the third president, and 16 and three make 19 again. What is so deep about this number 19? Why are we standing on the Capitol steps today? That number 19 — when you have a nine you have a womb that is pregnant. And when you have a one standing by the nine, it means that there’s something secret that has to be unfolded.