Final answer:
The prefix for dividing the basic metric unit to obtain micro is 0.000001.
Step-by-step explanation:
The metric unit prefix for dividing the basic metric unit to obtain micro is 0.000001. This means that when the basic metric unit is divided by 0.000001, the resulting unit will have the prefix micro (µ). For example, if the basic unit is meter, dividing it by 0.000001 gives you a micrometer (µm). Similarly, when dividing gram (g) by 0.000001, you get microgram (µg). If the basic metric unit is divided by 1,000,000 (106), the resulting unit prefix is micro-. This prefix is used to form units that are a millionth the size of the base unit. For example, a micrometer (μm) is 1/1,000,000 of a meter. Metric prefixes like micro- help us measure and express quantities that are either very large or very small compared to the base unit. It is essential to become familiar with these prefixes to efficiently work with different scales of measurement.