My personal number of coincidence is 515 which happens to be my birthday. Several times a week, at the end of the day at work, I look at the clock at exactly 5:15. Lots of other synchronicities with that number as well.
Also 11:11, which happened today though the number itself has no personal significance, I do have a friend and twin sisters born on 11/11.
I've only met one other person who comments on having a 'number' that keeps coming up. Anyone else out there with a significant number?