The phrase "action on a number" is correct and usable in written English.
It can be used in contexts where a decision or response is required regarding a specific numerical value or issue.
Example: "The committee will take action on a number that has been raised during the meeting."
Alternatives: "response to a number" or "decision regarding a number".
This will require action on a number of fronts.
Monitoring provides data for feedback action on a number of activities.
What is needed is preventive action on a number of fronts.
To mitigate these risks we have taken pricing action on a number of our sites in London".
Meeting sustainable development goals will require action on a number of fronts, including harnessing and maximizing the potential of technological innovation.
How many Americans understand the extent to which their country, especially during the Bush presidency, strives to undermine collective action on a number of fronts?
Cytokinesis is an active process that relies on the action of a number of proteins.
In the mouse initiation of the adaptive immunity relies on the action of a number of cytokines including IFN-γ, Interleukin-12 (IL-12), Interluekin-18 (IL-18) and tumour necrosis factor-α.
Achieving the food security, nutrition and sustainable agriculture goals by 2030 requires a coordinated set of actions on a number of fronts: coherent policies and programmes, an increase of investments in line with national priorities and greater collaboration across different sectors and stakeholders.
The exact nature of any corrective action depends on a number of factors including the nature and seriousness of the issue, the employee's past record, the impact on the work unit or the Institute, past treatment of similar issues in the work unit, and any other mitigating or aggravating circumstances.
But Sanders has also departed from Clinton's climate action proposal on a number of fronts, including a bid to ban Arctic oil drilling as well as all offshore drilling and fracking for natural gas.
