Peculiar Primes!

Some prime numbers make cute patterns.

Here's one of our favourites:


But if you want a prime number that's even stranger, try this:
  • Write out 1808010808
  • Write it out again
  • Write it out again...
  • Keep writing it out a total of 1560 times.
  • Put a 1 on the end.

You get a prime number with 15,601 digits, and the good bit is that it's a palindrome, it works when you look at it in a mirror, you can turn it upside down, you can hold the piece of paper up to the light and look at it from through the other side...

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