Saturday, June 13, 2015

Special properties of number 13 (Today’s Date)

1. 13 is a Fibonacci number
2. 13 is the number of Archimedian solids.
3. 13 is a Prime Number. 13 is a Fibonacci Number.
4. The Chemical Element Aluminum has an atomic number of 13.
5. The card deck includes 13 hearts, 13 spades, 13 squares, 13 clubs.
While the Earth revolves once, the Moon revolves 13 times.
6. There is always at least one Friday 13th in each year.
The probability of being born on a Friday the 13th is about 1/214
7. According to historians, there were 13 people at Christ's Last Supper and Christ was crucified on Friday 13th. So, Friday 13th is considered as unlucky.
8. The fear of the number 13 is called 'Triskaidekaphobia'. 

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