In GeoGebra, there are two different commands for writing numbers in scientific notation:

1.

ScientificText(<Number>)

2.

ScientificText(<Number>, <Precision>)

ScientificText(<Number>) uses a precision of fifteen significant digits by default. ScientificText(<Number>, <Precision>) gives you the option to decide the precision for yourself. In any case, GeoGebra calculates the same number and rounds it off to fit the desired precision.

<Number> is the number you want to have expressed in scientific notation. <Precision> is the number of significant digits in the number.