Scientific Notation: A way to express a very large or very small number as the product of a number between 1 and 10 and a power of 10.

Examples of scientific
notation are:

2.5 x 10^{6}, which represents 2,500,000.

4.32 x 10^{-5}, which represents 0.0000432.

In general terms, is written in scientific notation, where a is
between 1 and 10 (1 a < 10) and n is any integer. The number a is
called the mantissa and n is the characteristic of .