March 13, 2017 Open Thread; L Ron Hubbard's Birthday
Submitted by enhydra lutris on Mon, 03/13/2017 - 5:00am![](https://farm2.staticflickr.com/1493/26212496565_b2b949e0a3.jpg)
March 13 is the 72nd day of the year. There are 293 days left.
Today's number is 13
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13 is
13 is a prime number, it is the 6th prime
13 is a Wilson Prime (see numberphile video)
13 is also a prime if the digits are reversed (31).