Final answer:
The conversion factor from micrometers (µm) to nanometers (nm) is 1000.
Step-by-step explanation:
To convert micrometers (µm) to nanometers (nm), we can use the conversion factor of 1 micrometer = 1000 nanometers. This means that 1 micrometer is equal to 1000 nanometers. So, to convert micrometers into nanometers, you would multiply the value in micrometers by 1000.
For example, if you have a length of 3 micrometers, you can convert it to nanometers by multiplying 3 by 1000, which gives you 3000 nanometers.
Therefore, the conversion factor from micrometers to nanometers is 1000.