The Constant Factor was created in 1980-05.
The duration of The Constant Factor is 1.53 hours.
The "control" factor. (The factor being tested is referred to as the "treatment" factor.)
This factor is called the constant.
The question cannot be answered since "common constant factor" is not a recognised expression.
The factor that doesnt change in your experiment
A constant factor is one maintained unchanged throughout an experiment so that it does not affect the outcome. These are also referred to as controlled variables.
constant
The factor that doesnt change in your experiment
Constant Throb was created in 1972.
Constant Motion was created in 2007.
The Constant was created on 2008-02-28.
The Constant Princess was created in 2005.