OK I'll keep this short, the number 13 is said to be unlucky for some, the reason I'm asking is for the past six months I've been seeing that number, like when I look at my phone the time will say something and 13 and it the same with the computer, turn it on and its something 13 on the clock, I've even had emails that have been received at a certain time with the No13 somewhere in it, there's been loads of random things like that, at first it spooked me, but now its getting a bit of a joke, it was Friday the 13th last week and we all know about that, thing is I had a really good day things went well for a change, I was even thinking if it's a message, sign, then I get it 13 is there somewhere so stop showing it to me all the time, yes and I know that all sounds a bit weird :)

You may be focusing on the number 13. If you focus on the number 10, it would appear more frequently than 13. When women get pregnant, they begin noticing all the other pregnant females. When you buy a different car, it is normal to start noticing how many other people are driving that same car. It is just a coincidence with what is in your mind.

Here's another way of looking at it at the link below:

Characteristic | Significance| Number 13| Numbers (http://astrology.oneindia.in/numerology/number-13.html)

I know it's freaking you out because for almost a year, I keep
Seeing numbers in triplicate, like 222, 444, 111, very frequently, when I
Look at a digital clock, or any other items around the house with
Numbers that change.

Duplicate

My ex husband is from Thailand and he had this book (written in thai) that had horoscopes and things like that. Soon after we got married we were playing around with it and he told me to think of anyone that has passed away to ask a question to.. he told me to close my eyes and think of that person and put my finger on the book.. I couldn't know what numbers they were as they were written in thai.. I thought of my cousin who passed away who was the same age as me.. I asked in my mind if I married the right person and stuck my finger on the book... my ex told me I pointed to the # 13.. that night my cousin came to me in a dream and told me to leave my husband because I was in danger people wanted to kill him... Im not sure if that is true but we are no longer together though that is not the reason

Oh yea he had also told me that the book said about me that I would marry twice the last time when I'm 25... this was when I was 19 and I am most likely going to marry the man I'm with sometime next year even though we haven't set a date yet.. I will be 25 haha well anyway I think the # 13 only has power if you give it the power you know what I mean? You could do the same thing with any number...