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What kind of number is this?

Nine digits (e.g. Social Security Number)
Eight digits (e.g. U.S. Dollar Bill Serial)
Seven digits (e.g. Phone Number)
Six digits (e.g. Date in MMDDYY form)
Five digits (e.g. Zipcode)
Nine, seven, six, and five digits coming soon!


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Have you ever wondered about patterns in everyday numbers?
Newest Update! Over 400 bills have been added to the gallery! The Hall of Fame has also been updated!