Why is 73 the best number in the world

Usually, however, a number is chosen for a personal reason, most commonly because it is the day of the month we were born.

Yet the distinction between a numerical and a personal reason is not clear-cut, since there are some numbers that are rarely chosen as favorites even if the person was born on that day. For example, if you were born on the 10th of the month, you are six times less likely to choose 10 as your favorite number than you are likely to choose 7 if you were born on the 7th of the month. If you were born on the 30th you are forty times less likely to choose Some numbers evidently make better favorites than others.

Now I blame my lack of a favorite number on the fact that I was not born between the 2nd and the 9th of the month. Already a subscriber? Sign in. Thanks for reading Scientific American. Create your free account or Sign in to continue. Type keyword s to search. Today's Top Stories. The Rise of the Cleanfluencer.

Getty Images. This content is imported from YouTube. You may be able to find the same content in another format, or you may be able to find more information, at their web site. Related Stories. There are more than one right answers to this but we will side with the number that the renowned Dr. Sheldon Cooper vouches for. As you know, it is not very easy to please Dr. The number 73 is the 21st prime number.

Its mirror number, 37, is the 12th prime number. Twenty one also includes factors 7 and 3. The binary of 73 is and that of 21 is , both of which are palindromes word, phrase or number that reads the same backward and forwards.

Seventy three is a permutable prime with The atomic number of the chemical element Tantalum is