# December 21, 2012 possesses “cryptic” prime properties - PowerPoint PPT Presentation

1 / 11

December 21, 2012 possesses “cryptic” prime properties. Aziz S. Inan , Ph.D. Professor, Electrical Engineering University of Portland, Portland, Oregon. December 21, 2012. Last day of Long Count Mayan Calendar-December 21, 2012.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

December 21, 2012 possesses “cryptic” prime properties

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

## December 21, 2012 possesses “cryptic” prime properties

Aziz S. Inan, Ph.D.

Professor, Electrical Engineering

University of Portland, Portland, Oregon

December 21, 2012

## Last day of Long Count Mayan Calendar-December 21, 2012

There is general consensus that the 13-baktun* Long Count Mayan Calendar cycle will end on December 21, 2012

Unlike all the hoax stories however, I don’t believe that the world will come to an end on December 21, 2012 (or any other day in 2012)

*A baktun is a period of 144,000 days (about 393 years) in the Long Count, so, 13 baktuns is 1,872,000 days

December 21, 2012

## December 21, 2012 has special “cryptic” numerical properties

In addition to being the last day of the Long Count Mayan Calendar cycle, December 21, 2012 is also unique because its date number possesses special “cryptic” numerical properties

The goal of this presentation is to reveal these cryptic numerical properties to help change the image of this day from being a “dark” day to a “fun, brainteasers” day

December 21, 2012

## December 21st in a leap year

December 21st is the 356th day of each 366-day leap year such as 2012

Therefore, these two numbers (356 and 366) together can be viewed as representing December 21st in each leap year

Interestingly enough, numbers 356 and 366 together are also cryptically connected to December 21st, 2012, how?

December 21, 2012

## December 21st in a leap year

First, reverse number 356 to obtain 653

Then, take numbers 366 and 653 and put them side by side as 366653

Note that number 366653 still cryptically represents December 21st in a leap year

Surprisingly, this year’s December 21st can be cryptically derived from number 366653 in two different ways

December 21, 2012

## The 366653rd prime number cryptically leads to 21-12-2012!

First, the 366653rd prime number happens to be 5280503

Also, note that each leap year is divisible by four

Amazingly, four times 5280503 equals 21122012, the single full date of December 21, 2012 expressed in the day-month-year date format! Wow!

December 21, 2012

## Prime 356663 also cryptically yields 21-12-2012!

Next, reverse of number 366653 is 356663

Number 356663 is the 30500th prime number

In addition, 30500 = 305 x 100

Note that four times reverse of 305 yields 2012!

Number 2012 plus 100 gives 2112!

Finally, numbers 2112 and 2012 put side by side lead to 21122012! Fascinating!

December 21, 2012

## Numbers 356 and 663 also cryptically produce 21122012!

This cryptic connection is a bit of a stretch but it is also fun

Remember the two numbers 356 and 366, representing December 21st in a leap year?

The difference of 356 and the reverse of 366 is 307

Interestingly enough, 307 can be viewed as 305 + 2

Twice the product of the reverses of 305 and 2 equals 2012!

December 21, 2012

## Numbers 356 and 663 also cryptically produce 21122012!

Next, numbers 305 and 2 side by side make 3052

The prime factors of 3052 are 2, 7, and 109

Interestingly enough, 2012 + 109 – 2 – 7 = 2112!

Again, 2112 and 2012 put side by side is 21122012! Isn’t this something?

December 21, 2012

## December 21st in 2112 will be very special

As an aside, 100 years later, December 21st in palindrome year 2112 will be a very special calendar date, why?

The single full date of December 21st, 2112 will be 21122112, a palindrome date to occur in a palindrome year!

The last such date occurred on February 20, 2002, expressed as 20022002 and no other such date is to occur in this millennium

December 21, 2012

## References

A. S. Inan, “Numerical Oddities of December 21, 2012—Ending Date of the Long Mayan Calendar,” December 21, 2011

https://faculty.up.edu/ainan/MayanLongCountEnds21December2012.pdf

2. Big Primes: Large list of prime numbers http://www.bigprimes.net/

December 21, 2012