Cell phones, fax machines and pagers are dialing through the country's supply of phone numbers. The Federal Communications Commission, aware of the dwindling supply of 10-digit phone numbers and ...

Join Mrs. McCartney for a comparison word problem with her friend Professor Barble. Join Mrs. McCartney for a comparison word problem with her friend Professor Barble. Next, get ready to order 3-digit ...

Editor's note: This story was originally published in 2016 but if you're looking for 10 digit numbers for the current 911 outages on Dec. 28, 2018, read our current story that has the current numbers ...

The numbers on a credit card help identify the credit card network, the company that issued the card and the cardholder. Credit card numbers are either 15 or 16 digits, with each digit having its own ...

Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

CORRECTION: An earlier version of this story misstated which plate numbers qualify for a black-and-white porcelain reproduction tag. The numbers are 86999 and lower. Delaware's Tag-A-Palooza is back ...