Bill Doggett

Monday Open Thread; November 13 is World Kindness Day


November 13 is the 317th day of the year, there are 48 days left
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Today's number is 13

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13 is
13 is a prime number, it is the 6th prime

13 is also a prime if the digits are reversed (31)

13 is a pythagorean prime (13 = 3**2 + 4**2 & 13 = 4n+1 where n =3)