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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a factor is
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a factor is" is correct and usable in written English.
You can use it when defining or explaining a specific element or component that contributes to a situation or outcome. Example: "In this equation, a factor is any number that can be multiplied to obtain another number."
✓ Grammatically correct
Science
News & Media
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
58 human-written examples
We can check to see if such a factor is needed in the factorization above.
Science
How important a factor is his personality?
News & Media
In a way, though, the question of whether race was a factor is itself misplaced.
News & Media
A factor is the failure to regulate commercial breeders (so-called puppy mills) and their retailers.
News & Media
But Ms. Justino said the notion that race was a factor is absurd.
News & Media
One group certain not to be a factor is the Mujahedeen Khalq.
News & Media
The one state where Mr. Bradley may be a bit of a factor is his childhood state of Missouri.
News & Media
The one thing that is difficult to quantify but which is clearly a factor is resilience.
News & Media
No less a factor is an exemplary change in the attitude of the district attorney's office.
News & Media
Just to be a factor is an accomplishment for the Padres.
News & Media
The service does not track the reasons for denial, so the extent to which marginality was a factor is not clear.
News & Media
Expert writing Tips
Best practice
When using "a factor is", ensure the context clearly defines what the factor contributes to or influences. Provide specific details to avoid ambiguity.
Common error
Avoid using "a factor is" without providing sufficient context. General statements without specific connections weaken the argument. Instead, clarify how the factor directly influences the outcome.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a factor is" primarily functions as a grammatical structure to introduce and identify a specific element or consideration that influences a particular situation or outcome. Ludwig's examples show its use in both defining terms and explaining influences.
Frequent in
Science
39%
News & Media
59%
Formal & Business
2%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "a factor is" is a grammatically correct and frequently used construction, as confirmed by Ludwig, mainly in Science and News & Media contexts. It functions to introduce an element or consideration influencing a situation, with a neutral to formal register. When using this phrase, it's important to provide clear context and specific details to enhance clarity and avoid overgeneralization. Considering alternatives such as "is a contributing factor" or "plays a role" can add nuance to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is a contributing factor
Replaces "factor" with "contributing factor", emphasizing the contributory nature.
is an element
Substitutes "factor" with "element", focusing on a basic component.
is a component
Replaces "factor" with "component", highlighting the part something plays in a larger whole.
constitutes a factor
Uses "constitutes" to imply that something makes up a factor, changing the verb.
plays a role
Expresses the idea of influence or importance, but in an idiomatic way.
is a consideration
Highlights that something should be taken into account, rather than being an active influence.
figures as a factor
Adds a sense of prominence or conspicuousness to the factor.
is a point
Uses "point" to draw attention to a key aspect.
is a reason
Directly states something is a cause or justification.
is an influence
Focuses on the impact that something has on another.
FAQs
How can I use "a factor is" in a sentence?
Use "a factor is" to identify a contributing element in a particular situation. For example, "Cost "is a factor" in the decision-making process".
What are some alternatives to using "a factor is"?
You can use alternatives such as "is an element", "is a component", or "plays a role" depending on the context.
Is it grammatically correct to say "a factor is"?
Yes, "a factor is" is grammatically correct and commonly used in English to introduce a factor or element that influences a situation or outcome.
What's the difference between saying "a factor is" and "is a contributing factor"?
Saying "is a contributing factor" emphasizes that the factor is actively involved in producing a result, while "a factor is" simply identifies the element without necessarily stressing its contribution.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested