Spooky Halloween prime number

3D Jed

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I came across this weird prime number in the UK press today (31 Oct).

1000000000000066600000000000001

it's the number of the beast '666' with 13 zero's each side (13 considered unlucky) and a 1 - known to math dudes as Belphegor's Prime. Not only is it a prime number (divisible only by itself and 1) but it's also palindromic (reads the same backwards + forwards).

Belphegor's Prime - Wikipedia, the free encyclopedia
Belphegor's Prime: 1000000000000066600000000000001!

I guess it was mentioned 'cos it's Halloween today, and they were looking for a 'spooky' slant.

Happy Halloween !
 

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