Used and loved by millions
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 primary factor in
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a primary factor in" is correct and usable in written English.
It can be used when discussing the importance or significance of a particular element in a situation or outcome. Example: "The lack of funding was a primary factor in the project's failure."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(16)
a leading cause of
a major influence on
a key element in
a contributing factor to
a significant contributor to
instrumental in
plays a crucial role in
central to
a driving force behind
fundamental to
vital for
a major contributor to
an overarching consideration of
a key aspect of
an overall consideration of
an aggregate consideration of
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
60 human-written examples
The university is a primary factor in the city's economy.
Encyclopedias
Orthodontic force magnitude is a primary factor in root resorption.
I doubt that this system of education is a primary factor in rising drug costs.
News & Media
A rapid increase in trade was a primary factor in the 1990's expansion.
News & Media
In some cases soil is a primary factor in inducing development of scrubland vegetation.
Encyclopedias
Their success was a primary factor in the fall of the Kamakura regime.
Encyclopedias
Their delivery of high-emotion services was a primary factor in their selection for the study.
News & Media
Preliminary reports pointed to poor visibility as a primary factor in the crash.
News & Media
Mr. Bosies said that early withdrawal penalties were not a primary factor in consumers deciding where to put their money.
News & Media
Seal oil leakage degassing is a primary factor in seal oil system safety and reliability.
Elevation also is a primary factor in the distribution of the state's diverse wildlife.
Encyclopedias
Expert writing Tips
Best practice
When using "a primary factor in", ensure that you can clearly identify and explain other contributing factors to provide a balanced perspective. This avoids overstating the importance of the primary factor and provides a more nuanced understanding of the situation.
Common error
Avoid presenting "a primary factor in" as the only factor. Recognize and acknowledge other contributing elements for a more accurate and credible analysis.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a primary factor in" functions as a nominal phrase that introduces a significant element contributing to a particular outcome or situation. It identifies something as being of major importance, as confirmed by Ludwig's examples.
Frequent in
News & Media
32%
Science
32%
Encyclopedias
11%
Less common in
Formal & Business
8%
Wiki
5%
Reference
0%
Ludwig's WRAP-UP
In summary, "a primary factor in" is a versatile phrase used to highlight a significant influence or cause across various domains. Ludwig AI confirms its grammatical correctness and widespread usage. While frequent in news, science, and encyclopedic contexts, remember to provide context by acknowledging other contributing factors. Be precise and avoid exaggeration to maintain credibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a leading cause of
Emphasizes direct causation, focusing on the origin of an event or condition.
a major influence on
Highlights the power to affect someone or something, pointing out the importance of influencer.
a key element in
Pinpoints an essential component of a more complex system or process.
a significant contributor to
Indicates a notable addition or support to a particular outcome.
instrumental in
Stresses a vital role in achieving a specific result, underlining a contributing action.
plays a crucial role in
Highlights the importance of contribution in a certain process.
central to
Indicates something of utmost importance around which other things depend or revolve.
a driving force behind
Suggests strong influence that impels or directs a course of action.
fundamental to
Indicates something that serves as a basic element or foundation.
vital for
Emphasizes the necessity of something for survival or success.
FAQs
How can I use "a primary factor in" in a sentence?
Use "a primary factor in" to highlight a significant cause or influence. For example, "The economic downturn was "a primary factor in" the company's decision to downsize".
What phrases are similar to "a primary factor in"?
Alternatives include "a leading cause of", "a major influence on", or "a key element in". Each emphasizes importance but varies slightly in context.
Is it correct to say "the primary factor" instead of "a primary factor in"?
Yes, "the primary factor" is correct if you are referring to the single most important factor. "A primary factor" suggests one of several important factors.
What's the difference between "a primary factor in" and "a contributing factor to"?
"A primary factor in" suggests a more significant influence than "a contributing factor to". The former is more impactful, while the latter simply adds to the overall effect.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested