Teacher2Teacher 
Q&A #6073 
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From: Loyd <loydlin@aol.com> To: Teacher2Teacher Public Discussion Date: 2001110214:03:13 Subject: Re: Terminology; International System of Units On 2001110208:08:04, Darryl wrote: >Please could you tell me the term used (ie Mega, Giga) for the number >ten to the power thirteen. > There is no term for 10^13 in the System International System of Units (SI). All the prefixes represent powers of ten where the exponent is divisible by 3 except centi and hecto which represent 10^2 and 10^2 respectfully. To represent 10^13 meters, use 10 terameters. To represent 10^14 meters use 100 terameters. When you get to 10^15 then you may use 1 petameter. Take a look at this website for a better explanation of SI Units: http://physics.nist.gov/cuu/Units/prefixes.html
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