- Round number
Generally speaking, a round number is a
number that ends with one or more zeroes (0), meaning that they aremultiple s of 10, 100, 1000, and so on. There are variations on this theme, where multiples of 5 or 25 might also be considered "round." When counting and measuring, people often view the rollover to a round number as something of great importance. For example, a family might gather in theirautomobile to view the moment the vehicle'sodometer goes from 49,999 to 50,000 or 99,999 to 100,000. A rollover that adds another digit is often seen as particularly exciting. A similar fascination led people around the world to celebrate a newmillennium at the beginning of the year2000 , even though the event wouldn't really occur until the end of that year and the beginning of2001 .Numbers can also be considered as "round" in numbering systems other than
decimal (base 10). For example the number 32 is not round in decimal, but ends with zero in several bases including binary andhexadecimal .(Note:
MathWorld gives an entirely different definition of "Round Number" : the product of a considerable number of comparatively small factors) [ [http://mathworld.wolfram.com/RoundNumber.html MathWorld's definition of a round number] ]ee also
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Unix billennium
*Rounding References
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