Sheldon 73 Phone Cases - iPhone and Android

The best number is 73. 73 is the 21st prime number. Its mirror, 37, is the 12th and its mirror, 21, is the product of multiplying 7 and 3... and in binary 73 is a palindrome, 1001001, which backwards is 1001001.

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73 is the best number in the world and that is a scientific fact. Sheldon Cooper's collection. 73 in custom font with grunge, distressed overlay.

"73 is the 21st prime number. Its mirror, 37, is the 12th and its mirror, 21, is the product of multiplying 7 and 3... and in binary 73 is a palindrome, 1001001, which backwards is 1001001." --Sheldon Cooper, PhD.

You're in my spot.

No evil shall escape my sight

Prime number 73 in all its retro ink-rolled glory! Not just for the modern math nerd, but for the rest of us who leave the number crunching to our trusty accountants. A great gift for those turning 73 and dig celebrating their arrival at the 21st prime number. And for those born in 1973 who can proudly holler, I’m here, and born in the year of the 298th prime number! Take that, world!!

Believe it or not...

oath

The Perfect Number!

You're in my spot!

Inspired by The Big Bang Theory.

Inspired by The Big Bang Theory.

Inspired by The Big Bang Theory.

For fans of big bang theory