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zeros by using Scientific Notation: For example, 1300 with three significant figures becomes . Likewise 0.0123 can be rewritten as . The part of the representation that contains the significant figures (1.30 or 1.23) is known as the significand or mantissa. The digits in the base and exponent ( or ) are considered exact numbers so for these digits, significant figures are irrelevant.
*Explicitly state the number of significant figures (the abbreviation s.f. is sometimes used): For example "20 000

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