So when multiplying together numbers in index form, simply add the indices, providing that the base is the same.
Division is also quite straightforward.
So when dividing numbers in index form, simply subtract the indices, providing that the base is the same. A Simplify 1. In this case the number is in surd form, that is an expression involving a root sign where the resulting number cannot be written as a rational number. It is possible to write any number as a power of another number eg. And any number between 100 and 1000 will have an index between 2 and 3.