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Hecto or hecta is a decimal unit prefix in the metric system denoting a factor of one hundred.It was adopted as a multiplier in 1795, and comes from the Greek á¼ÎºÎ±ÏÏÎ½ hekaton, meaning hundred.Based on a proposal by Thomas Young, the prefix was often alternatively spelled hecato-in early 19th century sources. Its unit symbol as an SI prefix in the International System of Units (SI) is the lower case letter h.t was adopted as a multiplier in 1795, and comes from the Greek á¼ÎºÎ±ÏÏÎ½ hekaton, meaning hundred. Based on a proposal by Thomas Young, the prefix was often alternatively spelled hecato-in early 19th century sources.
In the metric system of weights and measures, the names of multiples and subdivisions of any unit may be derived by combining the name of the unit with prefixes, such as deka, hecto, and kilo, meaning, respectively, 10, 100, 1,000, and deci,