Whenever you look at a clock, do you always see the same time? It might be 11:11 or 3:33. Maybe repeating numbers have made their way into other aspects of your life, such as a receipt that totaled ...

Have you ever seen a number sequence pop up in random places in your life and thought it was a coincidence? Well, it's not just a coincidence. In fact, there's a meaning to seeing certain numbers.

Some strange mathematical sequences are always whole numbers — until they’re not. The puzzling patterns have revealed ties to graph theory and prime numbers, awing mathematicians. Simple, yes, but ...