Which metric prefix represents a factor of 1/1000?

• A. milli-
• B. micro-
• C. centi-
• D. deci-

Answer: (A)

Verified step by step guidance

1. Understand that metric prefixes represent specific powers of ten, which scale a unit by a certain factor.
2. Recall that 'milli-' corresponds to a factor of \$10^{-3}\(, which means it represents one thousandth or \)\frac{1}{1000}$ of the base unit.
3. Recognize that 'micro-' corresponds to \$10^{-6}\( (one millionth), 'centi-' corresponds to \)10^{-2}\( (one hundredth), and 'deci-' corresponds to \)10^{-1}$ (one tenth).
4. Compare each prefix's factor to \(\frac{1}{1000}\) to identify which one matches exactly.
5. Conclude that the prefix representing a factor of \(\frac{1}{1000}\) is 'milli-'.