Numbers

Why do people tend to be superstitious about numbers?

Thirteen is supposed to be evil either because there were thirteen people at the Last Supper or that many members in a witches coven.

And remember all the news about people who thought the year 2000 would be the second coming of Christ and the end of the world?

The dates 12/12/12 and 11/12/13 were supposed to be lucky days for a child to be born.

Personally, I'm not superstitious, but I do think number patterns are interesting. 

For instance, just this week we had 5/11/15 and 51115 is nicely symmetrical.

And last week on 5/4/15 spacey fans greeted each other by saying, "May the fourth be with you." I love that kind of humor!

What other number patterns can you think of?