The phrase "applying a number" is correct and usable in written English.
It can be used in contexts where you are discussing the act of using or implementing a specific numerical value in a calculation, formula, or process.
Example: "In order to solve the equation, you need to start by applying a number to the variable."
Alternatives: "using a number" or "utilizing a number".
Temporal resolution of time series can be reduced by subsequently applying a number of filters.
Experimental results obtained by applying a number of algorithms to a set of randomly generated networks are presented and compared.
After applying a number of swing cycles, the turning angle of the Ni crystalline with respect to the graphene orientation increases with increasing the number of cycles.
The present results should help researchers and experts gain a better understanding of CO2 emissions and reduction potentials by applying a number of low-carbon measures in Cambodia.
Most prominently, the area of social networks analysis (SNA) has recently bloomed by automatically applying a number of specific metrics over big volumes of data.
5min presents a familiar setup to any person who has used YouTube style video sites whilst applying a number of unique features that are sure to win the hearts and minds of the DIY minion army.
You can also apply a number of dramatic filters that will make your photos turn black and white or give them an old sepia tone.
Determinedly cute, it applies a number of motifs (arm-rollings, foot-tappings) and then forgets about them when the going gets busy.
When I put this question to business analysts, several pointed me in the direction of Louisiana, which has applied a number of Romney's principles.
We have applied a number of novel X-ray spectroscopic tools to Fe/ZSM-5 systems.
We have applied a number of analytical techniques to compare the chemical, structural and electrical properties of these films.
