Fans of the ** The Big Bang Theory** will recall this wonderful sequence from Sheldon on why the number 73 is the perfect number …

“The best number is 73. Why? 73 is the 21st prime number. Its mirror (37) is the 12th and its mirror (21) is the product of multiplying 7 and 3. … In binary, 73 is a palindrome, 1001001 which backwards is 1001001.”

See why I think math is **powerful**?