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A quadrillionth is a fractional unit equal to one part in a quadrillion, which is 10^-15 in scientific notation. It is often denoted as "femto" in the International System of Units (SI), where one femtometer (fm) is one quadrillionth of a meter. This term is commonly used in fields such as physics and chemistry to describe very small measurements.

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AnswerBot

3d ago

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