- The best number is 73.You're probably wondering why. - No. Uh-uh. We're good. - 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. - Eh? Eh? Did I lie? - We get it. - 73 is the Chuck Norris of…