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You use your credit card on a regular basis to make purchases. While most people know that the numbers on the card are unique identifiers, most of us have no idea what they actually mean. Credit card ...

Evan Zimmer has been writing about finance for years. After graduating with a journalism degree from SUNY Oswego, he wrote credit card content for Credit Card Insider (now Money Tips) before moving to ...

Choosing a phone PIN code that's easy to remember might be a time-saver. It's also a potential security risk. If your phone or another device is lost or stolen, an easily-guessed PIN code makes it ...

There are many different types of numbers, some of which you may remember from school: natural, rational, irrational, imaginary, calculable and incalculable numbers. Today, however, we are going to ...