Final answer:
Conversion factors that are exact numbers, such as those based on prefixes or equalities within the same system of measurement, do not affect the determination of significant figures in a final answer.
Step-by-step explanation:
Conversion factors that are exact numbers, such as those based on prefixes or equalities within the same system of measurement, do not affect the determination of significant figures in a final answer. These exact numbers are defined or counted numbers and are considered to have an infinite number of significant figures.