Big Bang Theory Quote
Sheldon: What is the best number? By the way, there's only one correct answer.
Raj: Five million, three hundred eighteen thousand and eight?
Sheldon: Wrong. The best number is 73. You're probably wondering why.
Howard: No.
Raj: We're good.
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 - seven and three. Heh? Heh? 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 backwards gets you is "sirron kcuhc."
Raj: Just for the record, when you enter 5,318,008 in a calculator, upside down, it spells "boobies."
Quote from S04E10 - The Alien Parasite Hypothesis