quadrillion(redirected from quadrillions)
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1. (in Britain) the number represented as one followed by 24 zeros (1024)
2. (in the US and Canada) the number represented as one followed by 15 zeros (1015)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The number 1015.
In British and German usage, the number 1024.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
quadrillionOne thousand times one trillion, which is 1, followed by 15 zeros, or 10 to the 15th power. See space/time.
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